A lot IF you go to a different college and can't meet each other often, so you'll probably have to make sure she doesn't or make her fall entirly in love with you by becoming a romantist or something, but I know that girls don't like really greasy boys...
Road trip
If you have a girlfriend and a boyfriend, then you are cheating on both of them.
maybe, maybe not.If he spends more time with the girl he is cheating on.
You can tell for sure that your girlfriend is cheating, by catching her on the act with her lover.
he is totally cheating.
I don't dream about your girlfriend
That is your choice. You can give her another chance and let her know that it is her last chance, or you can try to focus your attention on something else if you do not want to take a chance on her again.
then he must be cheating on you if he has a girlfriend? i mean if he likes you and has a gf then he must be cheating and wanting you?
It depends.....If you're willing to forgive and give her another chance you could do that. But personally I wouldn't be able to trust her. So I would break up with her.
stalk her
she is cheating on you.
Follow her