my husband is sleeping on the couch by choice randomly every week. is he cheating on me ?

I have huge trust issues. I've been cheated on every relationship I've had so anything odd will alarm me to think bad, my husband is one of those rocks when he sleeps and sometimes he will fall asleep when he is watching tv and I won't bother getting him up. Recently, he has been choosing to sleep on the couch? I flipped out the 1st time but I didn't act much like it. He was awake, we were going to bed and he chose to sleep on the couch..
I was like umm okay ? That's weird. Why? I say weird because before we got married ( he always showers every morning never will shower twice) he was coming home and jumping straight in the shower every now and then and Instantly will think the worst. s I tried just asking why and he jumped to defense.... he knew he can't come home and shower without me questioning so is this why he is choosing to sleep on the couch? He is acting weird...
He offends me a lot to put me down, but will bring me stuffed animals everyday this past few days. We went to go watch a movie had 2 drinks when it came to bed time he made the excuse that "you say I stink so I'm gonna go sleep on the couch" I was like wait what? Wtf? Are you serious !? Wtf !? He was like yeah ... when the fjjuckb did I say that ? He was like it's just so you can leave me alone..the 1st time he did it his excuse was "you told me go do something so I didn't" i asked you to come to bed with me ? Lol and apperantly that was his reason to sleep away from me... today out of no where too from being in the room he walks out and now  he is  sleeping on the couch... what the actual fuck? Do I just have horrible trust issues and am thinking the worst or am I tripping?