Mixed Drinks & Mixed emotions

Last Saturday, I went to a club with a couple of friends. On our way to the bar we pre-gamed it and once at the bar I had a couple mixed drinks, which I know I shouldn't have since my last meal had been at 11 AM. This lead to kissing my guy friend in the dance floor and now I'm confused about how I feel (he made the first move). I am trying to make things work with my bf of 1 yr and 3 months (who is not showing me much affection, unless we are together) and I think I am starting to grow feeling for my friend, who brings me breakfast to work and coffee every now and then. Am I feeling like this because my bf is not being affectionate?