>my ex-girlfriend from 2 years back.

Move on. Two years is too long to get back with a girlfriend.

>her parents told her to break it off with me, for some odd reason. Not because of me, she said.

Probably was because of you, she was just trying to be nice. Her parents probably didn't like you or she just need a way to end the relationship without hurting your feelings.

Again the best advice I can give is to move on.