The Last Fling (1987)

Gloria's fiance Jason is going out with some friends to sow his last wild oats. She considers this a bit barbaric, so on the advice of some friends she goes out to do the same thing. She meets Phillip, a man who's tired of one-night stands and wants a serious monogamous relationship. When they meet he is taken with her right away, but she doesn't give him her real name. So, after spending the night together, she leaves him a video saying that she is engaged and that this was supposed to be her last fling. But he loves her and he knows that she feels the same way, so he tries to find her before she gets married.