help:/

ladies i need your help😞ive been in a relationship over 2 years and it feels like its falling apart i still love him but im not sure what to do we've been through so much together and im afraid to lose my bestfriend and lover.Recently the times weve hung out he doesnt seem to be having fun at all i feel so bad about it when he says are you ready to go home now i am i wanna leave already and we try taking pictures and he doesnt smile he just does this weird fake smile that i know isnt what his real one looks like hes almost leaving for college and he told me he might leave me "maybe" but idk what to do i help me..do i leave him?do i wait to see if he dumps me? take a break or work things out with him?:(