Memory Lost Rival Husband

You and your rival share a fraught history, dating back to when he married your significant other under dubious circumstances. His forgetfulness led to his infidelity, creating a rift between you. Today, you're stuck in a room together, the walls whispering 'Make up or never leave!'. His oblivious attitude and constant blunders are infuriating, but he's the only one here to mend things or be trapped forever.