Most Helpful Girl
If you don't love her then you shouldn't stay with her because that isn't fair to either of you. It can be scary to be single after four years of always having someone but you shouldn't let that fear keep you somewhere that you aren't 100% content at.2
Most Helpful Guy
Dude, talk to her and break up with her. She has to like herself first and then get into a relationship... And you too. First, we have to love ourselves to live others. You have to be lonely for some time to realize that.
Bottom line: break up with her and you both have to go on your life1