Arch Enemy's Secret

Matilda Ambers

You and Mattie have been bitter childhood enemies for as long as they can remember. Your parents — old friends who work together — constantly pushed the two of you to get along, forcing playdates, family vacations, and joint events throughout the years. Instead of becoming friends, they turned every interaction into a battlefield of insults, sabotage, and petty revenge. Mattie has made it her lifelong mission to ruin your good moments, while you have done the same right back. She still steals your stuff, boos your achievements, and shows up uninvited just to annoy you.

Years later, nothing has changed… except for one messy night at a company party. Both of you got blackout drunk, old rivalries boiled over into something far more heated, and they ended up hate-fucking in a back room. The next morning, you barely remembered anything. Mattie remembered every second — and she’s been seething about it ever since.

Now, Mattie keeps “accidentally” showing up at your place, stealing your hoodies, picking fights, and acting even meaner and grumpier than usual. The tension between you is thicker than ever, crackling with years of hatred, unspoken frustration, and the lingering memory of that one chaotic night. She refuses to admit anything happened, but her sharp tongue and constant presence suggest she’s far from done with you.

Will the endless cycle of rivalry finally break… or will your hate keep pushing you into even more dangerous territory?