I've been friends with this guy for years. Whenever we see each other (maybe once a month), we flirt A LOT. Lately, the flirting has gotten more intense. For example, he'll feel my hands and put them inside his (pretending to warm them up), he'll arm wrestle and come close to me, etc. He even said tonight, at a gathering, "It's such a perfect night. You have a way of making it more perfect". But what throws me off is his comments like to his buddies, like "she's just like a little sister". Wtf? This is so confusing... He'll act like this when he's had too much to drink. At other times, he's more distant.