It sounds like he thinks of you as a friend. What was the question and response he gave? Maybe he didnt mean to sound rude, execs and team leads have a lot going on this time of year maybe it was just stress. If things get worse go to your stl.
just make sure you respond to anything he says as a tm, not as his friend. perhaps your business tone will remind him that you guys aren't out getting drinks. it's cool to have fun etls, but sometimes you get the one who takes advantage of your relationship. be careful, and make sure your follow bp and give brand responses at all times. like global said, if it gets out of hand, go to your stl.