im afraid im not in love anymore

i dreamt about his friend kissing me, so i guess its obvious that im thinking of other men. but the thing is, that i still think there might be a second chance for us to get happy. after 2 years that weve been together, he should have proposed, shouldnt he? after all, hes 32 and im 29 yo. but he wont, and thats the problem. should i leave him? time is pressuring things. im not a teenager no more. thanx