sweetopathic
When you meet that special girl and you think she's the nicest girl in the world. But then after the lovey-dovey phase is over she just gets crazy.
Boyfriend: I had to break up with Jennifer yesterday. Couldn't handle her anymore
Friend: what? Every time I saw her she was so sweet!
Boyfriend: she's sweetopathic
Friend: what? Every time I saw her she was so sweet!
Boyfriend: she's sweetopathic