If he parties alot, im sure that he thinks just the same as you as always. I remember i guy i met at a party that i was drunk at, he was so nice to me and took me home, without taking advantage of me. Later he said it was kinda cute to see other sides of me, and that the first side he saw was me drunk, as lame as that is haha, but dont over think it, im sure he still thinks the same of you as he thought he would.