When I was 19 I lived with a guy for a year. We decided I should move out when I was ready and one day he began rushing me. I moved in the same apartment complex and 2 days later a neighbor told me he was kissing a girl in the parking lot! I was pissed but I got over it.
Use your free time to do things you couldn't do with your boyfriend. pamper yourself, hang with friends, go to the gym, do anything to take your mind off of him.
I just ended a 3.5 yr relationship and I have to do the same thing, because it's still going to be hard not to see him everyday.
You'll get through it and you'll be a stronger person for the next guy.
good luck,
KATGRL