Becoming My Ex-husband’s Mistress

“Meet my new wife, Isabelle,” my husband Grant says, walking in with one arm around the woman’s waist and the other pulling a suitcase. You would think I’m not the one with his ring and last name. I look between the both of them confused. “Babe, I’m your wife,” I step forward, raising my hand to show him our wedding ring.
 The woman, Isabelle, scoffs obnoxiously, also raising her hand and waving her fingers to display her diamond studded ring, as if mocking me. Grant sighs irritated. “That doesn’t mean anything. I bought her a ring too. Even better than yours.” It doesn’t mean anything. Our five years of marriage doesn’t mean anything to him. He had been out of the house for almost a month without a word, leaving me with our daughter. And this is the stunt he decided to pull? Isabelle pulls away from him and walks over to the couch, sitting down cross-legged. Like she’s been here so many times. She doesn’t even look at me. I watch as my husband follows suit, sitting by her. He smiles at her lovingly, I try to remember when last he looked at me like that. “Don’t make a big deal out of this Claire. Just live quietly and it won’t be a problem,” he says without turning to look at me. “What about our daughter? She's only four, this would break her,” I can hear my voice c***k. “She’s a child, she’ll get used to it,” Isabelle butts in with Grant nodding in understanding. I look at both of them and say nothing more. I pick my bag from the table and leave to go pick up my daughter, Mia from school. The drive to the school is barely fifteen minutes but it feels longer today. I let the tears flow freely now. I know Grant had been staying out of the house for days, sometimes even weeks, with rumors of him cheating, but never would I have imagined he would bring a woman home, talk of a wife. Mia waves goodbye to her friends as she runs towards me. I hug her tightly, trying to look strong. She pulls back slightly, looking up at me. “Mommy, why are you crying?”
I wipe my face quickly, forcing a smile. “I’m not, baby. Mommy’s just tired.”
She doesn’t look convinced, but she nods and takes my hand anyway. The house comes into view and I dread going inside it. We’re barely inside when Mia runs towards her dad, arms open for a hug. He picks her up like a great father. With no intention of being in the same space as Isabelle, I head upstairs to run her bath.
As I head up, I faintly hear Mia ask, “Daddy, who’s that?” I barely hear his response— “She’s my wife now.” I stop mid-step. Mia giggles like it’s a joke. “No, she’s not. Mommy is.” There’s a long pause. I turn slightly, just enough to hear him clearly now. “Things are changing, Mia. She’ll be staying with us,” Grant says gently, like all of this is normal. My stomach drops. I grip the banister tighter, forcing myself not to go back down. “Go wash your hands,” he adds. “Dinner soon.” Her footsteps run toward the kitchen. I head upstairs and turn on the tap, watching as the water fills the tub. My hands rest against the sink, gripping the edges so hard I could barely feel my fingers. Staying with us? Like I’m not even here. I hear Mia’s laughter downstairs. It’s soft and innocent, completely unaware of what is happening. My chest tightens. I’m still standing there when I hear footsteps on the stairs. I don’t turn around immediately, but I know it’s him. “Why didn’t you explain things to your daughter?” His voice comes from the doorway, calm, almost bored. I turn then, staring at him in disbelief. “Explain what exactly, Grant?” He leans against the doorframe like we’re having a normal conversation, as if he didn’t just walk into this house with another woman. “This situation,” he says, gesturing vaguely. “You should’ve prepared her. Now she’s confused.” A short laugh escapes me before I can stop it. “Prepared her? You disappear for weeks, come back with another woman, call her your wife in front of our child, and I’m the one who should’ve prepared her?” He straightens himself, his expression hardening. “Lower your voice.” “No,” I say, shaking my head. “You don’t get to walk in here and start giving instructions like nothing happened.” “She’s a child, Claire. She’ll adjust.” “That’s your solution?” I ask, my voice rising despite myself. “She’ll adjust to what? Her father replacing her mother overnight? Why do I need to explain it to her, if she’ll just have to adjust?” “That’s not what I said.” “That’s exactly what you did.” For a moment, neither of us speaks. The air between us feels suffocating. Then I hear another set of footsteps. Isabelle appears behind him, her expression is calm as she steps into the room. Her eyes move between us briefly before settling on Grant. “Hey,” she says gently, placing a hand on his arm. “It’s okay. You don’t have to argue with her.” Her voice is soft and soothing, but there’s something underneath it that makes my blood boil. I watch as her hand slides from his arm to his chest, her fingers resting there as if marking her territory. Grant exhales, some of the tension leaving his shoulders as he glances down at her. “I’m not arguing.” “You are,” she murmurs, tilting her head as she looks up at him. “And it’s not good for you. We just got back, so you should rest.” She says it like I’m invisible. I almost feel like the outsider here. “Don’t do that,” I say sharply. They both look at me. “Do what?” Isabelle asks, her tone light. I let out a slow breath, trying to steady myself. “Act as if you’re his wife, like you belong here.” There’s a brief pause before she smiles. “I’m not acting,” she says quietly. I look at Grant. “Is this what you’ve been doing all this time? Building a whole life somewhere else while I was here taking care of our child?” His jaw tightens. “Watch how you speak.” “Or what?” I challenge. “You’ll bring in another wife?” His expression darkens, but before he can respond, Isabelle’s hand tightens slightly against him. “Grant,” she says soft but firmly. Her fingers brushing up along his chest. “Let it go.You don’t need this right now.” He looks down at her again, and the tension in him eases. Her hand slides into his, their fingers intertwining. I almost lose my balance. “Get out,” I say. They both turn to look at me again. “I need to give Mia a bath,” I continue, my voice steady this time. “So get out.” Grant hesitates for a second, like he’s deciding whether to argue again, but Isabelle squeezes his hand lightly. “It’s fine,” she says. “We’ll go downstairs.”
He exhales and nods, then turns without another word. She follows, but not before giving me one last look. The door remains open after they leave. I stand there for a moment, listening as their footsteps fade down the stairs. Then I turn back to the bathroom, forcing myself to focus. The water is still warm, and Mia will be upstairs any second. I reach for a towel to dry my hands. That’s when their voices drift up again. “…don’t aggravate her right now,” Isabelle says. “Not until she signs the papers.” My hand stills. “What about the child?” Grant asks. There’s a pause. “Handle one thing at a time,” Isabelle replies quietly.