So, I have a boyfriend.

We've known each other for a few months, but only recently has the relationship turned romantic/sexual. Since we've gotten together, however, I've noticed that he acts very differently depending on whether we're alone or with friends.

When we're alone somewhere, public or not, he's extremely sweet, always holding my hand, kissing me on the cheek, cuddling with me every chance he can get, etc. I absolutely love being around him, he makes me so happy.

However, when we're out in our group of friends, he barely touches me. I'll bump into his hand constantly and he won't take it. He'll say hurtful things, then play it off as a joke. If I do something similar, he pretends to get angry at me for long periods of time.

I'll tell him, "I wish you'd be nicer to me," and only after that will he hold my hand or put his arm around me and all that. I don't feel like I should have to tell him, though...

Is this a normal thing for guys? To not want to be sweet when around friends?