On my 30th birthday, I was expecting a proposal from Cameron, the man I'd loved for ten years. He'd booked the city's most exclusive penthouse suite, promising a night that would change our lives forever. He was right. A frantic call from my best friend, Kennedy, revealed the truth: she was flying in to confront her cheating husband. His name was Cameron Roberts. In an instant, I became the unwitting other woman — the very thing I despised after my family was destroyed by infidelity. Then I discovered I was pregnant. When I tried to leave, he threatened to ruin my career and expose me. He told me I was nothing without him. But the truth was even sicker. He never loved me; I was just a stand-in for his dead first love — a ghost he was chasing while married to my best friend. So I ended the pregnancy, joined forces with his wife, and together, we decided to burn his entire world to the ground. Chapter 1 Kacy Gordon POV: My 30th birthday was supposed to be the night Cameron proposed. Instead, the morning brought a phone call that shattered my entire world. The city hummed outside my window. Sunlight spilled across my apartment, highlighting dust motes dancing in the air. I smoothed my blush silk dress and checked my reflection. Today was my milestone. Cameron Roberts—the man I'd secretly loved from across a college quad ten years ago, the man who finally became mine two years back—had promised a surprise. His text glowed on my screen: "Zenith Tower. Penthouse. 7 PM. Dress to impress." My heart raced. I imagined sparkling champagne, candlelight, a velvet box with a diamond. The next step in our life together. Then my phone vibrated again. Kennedy Baird. My best friend of fifteen years. Calling from London. I grinned, picking up. "Hey, stranger! Happy birthday to me!" Kennedy's voice—usually bright and full of a worldly calm—cracked with urgency. "Kacy, I just landed this morning. I'm coming to you." My smile fell. Kennedy never sounded like this. She managed her family's European empire. Her visits were planned months in advance. "It's Cameron," she spat. "My husband. He's cheating." The words hit my chest like a rock. "Cheating?" I repeated, my voice barely a whisper. Infidelity was a poison in my life, a trauma that ran deep. My father's affair had driven my mother to suicide when I was sixteen. I'd built my entire moral code around it: never be the victim, never be the other woman. "Yes! He's celebrating his mistress's 30th birthday tonight. I need your help. Look at this photo—do you recognize this man?" A grainy image appeared on my screen. The silhouette was unmistakable. The way he held his shoulders. The tilt of his head. My blood turned to ice. "Kacy? Are you there? I'm coming to your place." "I'll be here," I managed, my voice strained. After the call, I fumbled for my purse. My hands were shaking. I remembered Cameron had handed me his corporate credit card last week, asking me to pick up a new tie for him. I fumbled it open, my eyes scanning the recent transactions. Zenith Tower Hotel – Suite & Catering Deposit. Yesterday's date. He had booked it. For me. For my birthday. A wave of relief washed over me, quickly followed by a chilling dread. If Kennedy's husband was also celebrating his mistress's 30th birthday in the same penthouse suite… the coincidence was too cruel. My phone pinged. Cameron: "Happy Birthday, gorgeous! So excited for tonight. It's going to be unforgettable." Unforgettable. The word echoed, hollow and mocking. A frantic knock. I opened the door to Kennedy—pale, red-rimmed, designer bag still slung over her shoulder. Her eyes were swollen. "Kacy! Oh, thank God." She threw her arms around me. I hugged her back, feeling her tremble. But my mind was racing. I had to be sure. "Kennedy. Show me the picture again. The one of your husband." She pulled out her phone, scrolling. "Here. This is the bastard." A close-up of a man leaving a hotel. Cameron Roberts. My Cameron. My breath hitched. My vision swam. It couldn't be. "No," I whispered, shaking my head. "No, this is wrong. This is impossible." "What do you mean, 'impossible'?" Kennedy frowned, oblivious to my internal collapse. "It's right there. My husband, Cameron Roberts." She paused, her eyes widening slightly as she looked at my face. "What is it, Kacy? You look like you've seen a ghost." I couldn't speak. Ten years of loving him. Two years of believing I was his future. All of it was a lie. I was unknowingly the other woman—the very thing I despised. My mother's ghost rose behind my eyes, cold and accusing. I stared into my best friend's face. The words choked in my throat. How could I tell her that I was the mistress? And what would be left of us when she found out?

Kacy Gordon POV: The world spun around me. Kennedy's words—"My husband, Cameron Roberts"—roared in my ears. The photo on her phone burned into my retinas. My Cameron. The man I had loved for ten years, the one I had built my life around, was married. He was Kennedy's husband. Everything clicked into place with horrifying clarity. His reluctance to talk about marriage, always brushing it off as "the right time hasn't come yet." His frequent overseas "business trips," always so vague about the details. "Client meetings," he would say, "critical negotiations." I had believed him. I had admired his dedication. Now I understood. He wasn't working. He was living another life. A married life. With my best friend. The anger surged, hot and bitter, quickly followed by a crushing wave of humiliation. I had been a fool. An oblivious, trusting fool. "Kacy? What is it?" Kennedy's voice cut through the fog of my shock. She reached for my hand. "You're still so pale. Are you feeling sick?" I couldn't answer. My throat was tight, my tongue heavy. The apartment felt suffocating. I needed air. I pushed myself up from the couch, my legs unsteady. "I… I need some air," I mumbled, stumbling toward the door. Kennedy, still focused on her own pain, nodded. "Okay, let's head downstairs. We need to go anyway. The Zenith Tower. We have to confront him. Right now." She grabbed her bag. "We can grab a cab outside." We walked out of my apartment building and toward the street. The sun felt harsh, the city noise overwhelming. As we waited for a taxi, a wave of nausea washed over me. My stomach churned. I bent over, clutching my midsection. "Kacy? What's wrong?" Kennedy asked, her voice laced with concern. I couldn't stop it. I retched violently into a nearby flowerbed. My body convulsed, emptying the contents of my stomach onto the pristine urban landscaping. Tears streamed down my face, hot and stinging, mixing with the sweat on my forehead. It was more than just physical sickness. It was the complete implosion of my life, manifesting itself in a brutal, visceral way. Kennedy rushed to my side, her hand rubbing my back. "Oh my God, Kacy! Are you okay? You're crying too! Did you eat something bad?" I shook my head, unable to speak, still heaving. The metallic taste of bile filled my mouth. "Here, use this." Kennedy handed me a tissue from her purse. "You're really shaking. Your hands are freezing." I wiped my mouth, my chest burning. My hand, still trembling, brushed against my purse strap. Something crinkled inside. The doctor's report. I had picked it up yesterday, planning to tell Cameron tonight. A happy surprise. I had missed my period. The tiredness. The morning nausea. I had blamed stress, a busy work schedule. But a visit to the doctor confirmed it. I was two months pregnant. With Cameron's child. The thought, once a source of quiet joy and hopeful dreams, now brought a fresh wave of agony. A baby. Our baby. I was going to tell him tonight, over that romantic dinner. He would be thrilled, I thought. We would start a family. Now, the image of that future turned to ash. There was no "our baby." There was only a child conceived in a decade of lies. A child born from a lie would live a lie. I wouldn't let that happen. And I had no idea if I could keep it—or if I even should. My fingers tightened around Kennedy's hand. I looked into her worried eyes, a desperate plea forming in my throat. I had to tell her. I had to tell her everything. "Kennedy," I said, my voice hoarse, "there's something—" "Kacy, we need to go! I just hailed a cab!" Kennedy exclaimed, pulling me toward the waiting taxi. Her focus was entirely on her mission. "We can't let that bastard get away with it! He's probably up there right now, celebrating with his mistress!" She shoved me into the back seat. "Come on, Kacy! We have to go!" "Kennedy!" I cried out. My secret, my pregnancy, the crushing weight of being the "other woman"—it all surged to the surface. I needed to confess. I needed to tell her that her husband was my partner. That his mistress was me. She glanced at me, her brow furrowed. "What is it, Kacy? We're almost there. We can't lose momentum now." I met her gaze, her eyes full of righteous anger, focused on the betrayal of her marriage. How could I say it? How could I tell my best friend that her pain was my pain, that her betrayer was mine? The words choked in my throat, trapped by shame, guilt, and the horrific irony of my situation. I fell silent, my secret a crushing burden. The cab sped toward the tower. Each red light was a countdown to destruction.

Kacy Gordon POV: Kennedy's energy was electric—a storm of righteous fury contained inside the taxi. For fifteen years, we had been inseparable, sharing every triumph and every heartbreak. We navigated high school crushes, college anxieties, and the terrifying plunge into adulthood together. She knew everything about me. She knew about my decade-long crush on Cameron, the quiet longing, the joy when he finally noticed me two years ago. She had celebrated my happiness. I knew about her, too. Her family's immense wealth, the pressures of her father's business empire. I knew about her arranged marriage to Cameron—a strategic alliance between two powerful families. She had confessed to me countless times that it was a marriage of convenience, not love. They lived in different countries, maintaining separate lives. She always said he was a good man for the family business, but emotionally distant. She had accepted it, prioritizing her family's legacy. She never loved him, not truly. She had even joked about him being her "business partner with benefits." We had spent countless nights on video calls, sharing the minutiae of our lives. She would talk about the frustrations of managing her company's European division, the boredom of her marriage, the expectations of her family. I would talk about my marketing projects, my hopes for Cameron and me, our quiet evenings, our dreams of travel. We thought we were sharing our lives—but we were both living lies, unaware that the same man was at the center of both worlds. Now, sitting next to her, I felt the sickening truth: I was the mistress she was hunting. The "other woman" she so vehemently despised. My entire moral framework, built on the shattered pieces of my mother's life, crumbled. "Kacy, you're so quiet," Kennedy observed, turning to me. Her eyes, still red-rimmed but sharper now, assessed me. "Are you really okay? You've been off since I called." "I'm fine," I lied, my voice wavering. "Just… processing. This is a lot, Kennedy. For you." The irony was a bitter taste in my mouth. "It is," she agreed, then her expression hardened. "But I'm not letting him get away with it. Not after everything." The cab pulled up to the Zenith Tower. The towering skyscraper gleamed, a monument to luxury and deceit. My heart pounded. This was where Cameron had planned my surprise. This was where he was also celebrating with his mistress. The words "mistress" and "30th birthday" echoed in my mind. He was celebrating my birthday. "Stay here, Kacy," Kennedy said, her hand on the door handle. "Let me go in first. I need to scope out the lobby. You wait here. I don't want to drag you into the initial mess. I'll call you when I need you." She gave me a confident, almost triumphant smile. "Wish me luck. I'm going to rip him apart." "Wait!" I cried, but she was already out of the cab, her heels clicking purposefully on the polished pavement. She strode into the opulent lobby, a warrior on a mission. A mission to expose Cameron Roberts, her cheating husband, and his mistress. Me. I watched her go, a cold dread settling in my chest. My hands were clammy, my palms slick with sweat. My breath hitched. What was I supposed to do? Tell her? My best friend, the woman who was about to confront her lying husband, that I was the very woman she was here to expose? The thought made my stomach churn again. Our friendship, fifteen years of unwavering loyalty, trust, and shared history. Could it survive this truth? Would she ever forgive me? Would she understand that I had no idea? How could she? From her perspective, I was the enemy—the one who broke her marriage. Even if I was an unknowing participant, the facts remained. I hated infidelity. It had ripped my family apart, left me with a motherless childhood and a deep, festering wound. And now I was standing here, poised to discover that I was living the very nightmare I had tried so hard to avoid. I was the mistress. A sickening, hateful word. My mind screamed, but no answers came. Only a deafening silence filled with despair. But then Kennedy spoke again, her voice barely a whisper. “I want to hate you, Kacy. A part of me still does. But I know you. You didn’t break my marriage—he did.” She paused, her jaw tightening. “That doesn’t mean it doesn’t hurt. Give me time.” I nodded. Time. That was the least I could give her.