I am a terrible boyfriend

I am gealous. I keep asking my gf questions about her exes. Not because I want to know what she did, but because I want to know more about her, bcs I know she has been treated like shit in the past. Today I made her the angroest she's ever been and she does not answer my texts. I do not know what to do. I know I'm a terrible perdon, but I don't know what to do.

If your read "Notes from the underground", you'll understand me. I am a terrible terrible person.