Yeah this is actually quite true. As a single guy I was always trying to improve myself (went to the gym, studied hard, etc). When I was in a relationship the only thing I did was study and everything else got put on the back burner. I think i'm going to re-join my school gym and comit myself to that. I also have summer school so between those two I should have lots to keep me occupied.
Thanks everyone else for your advice and understanding, I really appreciate it!