This is why I encourage everyone to really get to know aperson as friends before anything physical happens. Physical actions often create feelings that originally just were not there.

If you truly wish to find a guy that will like you back, look for someone that respects you. Someone that isn't just looking for a quick make out, but instead someone that waits to kiss you. Someone that is willing to get to know you. If they aren't willing to do those two things, don't count on them lasting too long. You'll continue to get hurt.