I think my husband cheating

So my husband coming home early from work lately. Very weird. But today he came home early from work & he went to SHOWER but it' took like 2 hours. But I wasn't thinking anything. (Last night he went to smoke a joint w my brother, my dad knock on my room door saying my husband company truck isn't here. I called him he was acting weird. But lately he' called me mentally unstable fat bitch who's clingy. I try not to be clingy but every time I don't text him he calls me a cheating slut & when he comes home he treats me like like trash. & treats me like I'm not there then when I just say one word he calls me a slut then we fight then he starts getting physically abusive.) anyways when he came home today he went to shower & he came back in the room. He told me to give him head. He was acting all nice . But when I was about to give him head his dick smelt like pussy. I ask him. He said idk weird. I said it is weird cause we didn't even have sex at all. Last time was two nights ago. & It's weird. But he's being weird & I feel like he's cheating & I already know how I'll react to it IF what I'm thinking is true.