Chick who is obsessed over you and will not take no for an answer no matter what. Than after sex starts to stalk you to no end.
See the movie Swim Fan
the second level of insanity women get to (following betty); at this stage she goes through her mans text, my-space, face book & call history; questions your where abouts; and insinuates that you are allways lying; possibly physically abussive to your animals, personal belongings, family members or friends
Dude, you need to ditch her, she is starting to go swim fan, my fucking life is in danger!