IS HE SMITTEN? or mad?

dating an older guy who has been a bit let down with women. he has a failed marriage and a kid from it. whenever his friends come around he watches my reaction to them, and won't even leave the room to go to toilet.They tell me he is infatuated with me, and my guy seems none to happpy at this.Last time his kid came to stay, we were having a quiet night, but his mate came around.it takes him an hour to get his child to sleep, so he would rather i went home than sit with his mate alone. he didn't even want his brothers talking to me.what is up with this guy?? is he smitten?? but after his dates i find he will be distant for a few days b4 he texts again