It's just normal conversation and jokes amongst friends, but I feel on edge around him. He tries his best to be polite though, that I can say for sure, but I don't know what's going on in his head at any time and it sometimes makes me anxious.
Also I've caught him staring at me multiple times - neither of us acknowledge the staring. He gets a little miffed if I talk about others guys and withdraws if he thinks it's something serious.