He loves me.. he loves me not.. he loves me..?

My boyfriend can look me in the eye and tell me he loves me. But he won't even look at me around his friends. He says the nicest things to me. He says the worst things to me around his friends. I try to talk to him about it, but he always silences me with a breathtaking kiss. He treats me like a beautiful art of gl, that cannot be dropped. He treats me like one of them, his "friends". I try so hard to ignore his kisses and ask again, but then get lost in his eyes. I can't. But I should. But how can i break it off with the guy that takes my breath away?