Can someone give me some advice on some really immature drama?

Take the time to realize, that you are going through a hard time. You are young with all this stuff. Don't abandon her, because she may need you more than you need yourself. But have a good talk with her, because if you cant spell it out for her, then try harder to get it through her head. Tell her all about her boyfriend. You don't deserve this, don't get stressed over something you have nothing to do with. Please try to explain everything, spill your heart on the pages. and I hope you are healthy. <3