Married is this guy hitting on me?

I am married and I had this feeling this guy was interested in me, he's a member of my social group. Many of my encounters have been when we are drinking (not all though) and I am not used to drinking admittedly, I can't hold my liquor. Some of the signs he's given: going out of his way to see me, looking at me tenderly (doesn't matter if he's drunk or not), leaning in very close abnormally close (drunk/not drunk), touching me (either), holding my hand (drunk), hugging me he does hug others too but I get hugged for no reason not just the usual greeting/farewell ritual though sometimes when he's sober he acts like he'll hug me and doesn't (either), holding me, squeezing me (drunk), caressing my face this occurred at dinner with my husband he just started looking into my eyes and petting my face like we were the only people there (either), once when drunk he'll held my face and looked at me and I thought he would try and kiss me, complimenting me profusely (either), sending me love songs (sober), making suggestive comments (either), teasing (either), being rude to my husband (either), buying me drinks or paying for things (either), and so on. He does sometimes appear to ignore me when he's sober not if he sees me but not responding to things I ask online sometimes. Initially I thought he's just friendly (drunk people can be quite friendly) so I ignored it, after a while I started to think maybe its more than that since he's not always drunk and can still act oddly when sober. So I asked him about it and he explained to me he's a friendly guy like that to everyone, maybe so but people have pointed out to me that he treats me differently and an attractive girl we hang with says he certainly doesn't treat her like that. I don't know if I am nuts for thinking he liked me and I feel bad that just maybe it'll make things awkward in the future. He said its fine we'll go back to normal not to worry and forget it. I guess my intuition is totally broken! My friends say he's lying but I am not sure.Could he be? Is he just messing and having fun? Can anyone explain this behavior (male opinions much needed). I'd like to get on with him and be friends, as avoiding him is not much of an option and not something I care to do.