Number, you're not the first guy who has gone through this. I don't think it's easy to get her back if she's already gone. You can definitely call her for lunch and remind her of those promises and moments that you guys spent together but that wouldn't make any difference. She might have had definitely made this decision in her sense. First of all, stay focused and do well in your classes, that's what you're here for. All you should be thinking at this time is your education and career, you'll then see how many girls you'll get once you set your path successfully in life.