Cheating husband.....

I believe in my bones my husband is cheating every time I ask him questions about things that don't add up he act like I'm insecure because he says I'm cheating(I'm not at all) he comes home without his ring on and says he didn't want to lose or got in a fight and took it off(how many fights can one person get in tho) tonight I saw a text message with a question ? From a Conant that says Lil bit (he gonna make some shit about who this is) but above everything else he has locks on everything his text his gram his fb and is always looking through my phone and accusing me (of nothing because I don't even give him reason), I'm not stupid he's cheating but somebody please talk me out of this life sentence I'm about to get....