I feel stupid

last night I went to a party and there was 4 guys that were obviously gay, i don't have anything against gay people but some of the girls i was with started to make fun of them, I hate that, so i invited them over to my table and gave each a drink, I made it clear that i know what happened and that I apologized to them for them being disrespectful, to my surprise one of the guys kissed me on the cheek and grabbed my butt. I've been a member of reddit for a long time and being a part of supporting the gay community is important, however what happened today was just weird.