Mad or cheating?

B

My husband is out of town. He cheated about 2 years ago, refuses to have remorse about it. I mentioned in a phone call last night I feel like he’s acting strange and now he refuses to talk to me. Says he is tired of me accusing him of cheating when he’s not. My friends said I should give him the same treatment back by ignoring his messages and calls (which he’s sent none). But it seating away at me wondering if he really is cheating and him not contacting me proves that. Could it be that he’s just mad and is trying to cool off? The fight was last night and we haven’t talked all day. Could this be some cruel punishment for me not trusting him? Or is he more than likely cheating again?