About Last Night... (1986) on Netflix

In Chicago, the salesmen of restaurant supplies Danny Martin and Bernie Litgo are best friends and womanizers. One night, the handsome Danny meets Deborah 'Debbie' in a bar and they have one night stand. Debbie works in an advertisement agency and lives with her roommate and best friend, the kindergarten teacher Joan, and they fall in love with each other. The infatuated Debbie moves to Danny's apartment and they have great sex but very few conversation. Their closest friends Joan and Bernie frequently try to sabotage their relationship. Five months later, Danny breaks with her and the brokenhearted Debbie returns to Joan's apartment. Meanwhile Danny grows up and misses Debbie, but maybe it might be too late for reconciliation.