Not Again! (1996)

Befuddled young Angie cannot seem to end a hectic day when she's confronted by her ex, Jamie. Whisked about town on a whirlwind date, Jamie falls for Angie again, but she resists; Angie's roommate Rita falls for Jamie. It all explodes at a party they all attend, with the addition of ex-girlfriends and ex-boyfriends everywhere.