Stop being just friends with girls. If you like them then go for a date immediately. Stop being a male girlfriend and you won't find yourself in this type of situation again. If they have a boyfriend then don't bother even saying hello to them again and that way you won't find yourself in love with someone else's girl.
Have college men for platonic friends and woman for dating. Its the "K.I.S.S" method of getting on in life.. Keep. It. Simple. Stupid.
“The willingness to accept responsibility for one’s own life is the source from which self-respect springs.” ~Joan Didion