“If he changes the way he treats you when he’s around his friends, he either hasn’t been keeping it real with them or he hasn’t been keeping it real with you.”
True love remains consistent regardless of the situation or the environment. If he truly loves you, his actions should show it whether you are in private, public, or the company of his friends. In fact, when he is around his friends, he should feel a heightened sense of pride just having you there with him. If he doesn’t, it could mean he cares more about impressing his friends than he cares about how you feel. It’s also possible that he’s been lying to them all along about how he feels about you, or maybe he’s been lying to you.