I want to eat because I think it'll take my problems away.
What kind of problems do you think eating will solve?
My GF keeps bothering me and stays too close to me.
Eating isn't going to fix the problems you're having with your girlfriend. Instead of eating you should talk to your girlfriend, and consider seeking professional help to work through the problems.
I feel like if I talk to my gf, she'll take it the wrong way.
One thing is for sure, food is not going to solve this issue. If you overeat every time you have a problem you could develop a really unhealthy food habit.