Lana,
Hey girl! I'm sorry to hear about you and your man! I was in a similar situation and had to see this chick all over campus. It sucked, but I lived through it. (definitely had a few rough nights)
Keep in mind that it's HIS problem, not yours!!!!
Keep busy, and keep in mind what everyone here said.. that if he couldn't even break up face to face then he is NOT worth you!!!!!
You will meet someone else, (If not, I have a few boys I know in Denver I can send up your way
)
And dont you worry about those DZ's... you have no way of knowing (nor should you, it would be torture) who he decides to hook up with, and if they are in DZ, that doesn't make them one bit better or ANYTHING than you.