My bf and I have been together a year and its been really rocky and up and down.
I was mainly chasing him and begging for attention/affection the whole time.

 Anyway now I'm just focusing on myself and the relationship has gotten healthier; he's started being really affectionate and loving and I'm starting to freak out and want to leave. It seems like whenever someone actually shows me love I don't know how to respond and I start causing fights and picking holes in the relationship to feel better about leaving.