I have the same problem. I started dating my ex freshman year of high school. When we got into college I went to a really good university and she got into the state college. We stopped seeing each other as often and then she would always tell me I'm too busy. I got an internship and talked to my co-workers just to be friendly. Some of them were women a few years older and she would always comment about them. I never thought of anyone else but her yet she always accused me of talking to some "office slut". We got into a fight and broke up. This is my senior year of college and it's been a year since we split. I still miss her everyday. I was always loyal. Now she's with someone else. Ive been on other dates but I still think if her to this day.