My Boyfriend is mean to me?

Me and my boyfriend just got back together after a long break up. He asked me out and I said yea but now he is acting like he just isn't interested in me anymore. He is being sarcastic and mean with me in our conversations.(We have a long distance relationship) I put in my last question that maybe he is just getting used to us again...but I am not too convinced. When we talk on the phone he acts all mean..but when we're together he isn't bad! He told me today that he loves Toni Braxton and I said that i liked Terrence Howard. Then he goes on and says I like Toni because she is fine, and she's sassy, my kind of girl.I got offended by that!!! But anyway what should I do???break up with him? I am scared of telling him how I feel because he isn't the type to say I am sorry i love you type...he doesn't really express his emotions towards me at all.