this was an olden day movie I watched in  2003 or 2004 about a brother and sister who became romantically involved as teens, but as they reached adulthood he ended it saying it was wrong and met and married another woman, and the sister was jealous and hated her and kept trying to get back together with him. I believe she told the woman their secret and the brother got mad..IDK it was weird and stupid but I never got to see the end and now I want to