I'm graduating and my feelings are still on the state of being unsure...?

i am fond of 3 guys who keep me asking myself who's really the top in my heart coz everytime i'm with one i'm happy and sometimes hurt is undeniable though it's obvious i don't have the right to be jealous coz they're juzt my clmates(1.past crush yet never gone,..2.a friend in need yet uncertain of himself and his future,..3.a close friend who's now a campus heart throb and hard to be with, one on one bec. of the gals attracted to him)WHAT SHUD I DO??!!