Is it normal for me to feel like this?

iam so heart broken after she left and i cant keep thinking of her...eveytime our song goes on every place we gone together makes me think of her iam going crazy ..for the pass few months i miss her but somehow i wanna forget idk i guess like winter break is almost done and in college i know that all she have is me cause she dont know anyone but me and i know that she is going to com and talk to me as a friends and it hurts me so much...