Are there men who really don’t cheat?

I (25F) have been with my bf (25M) for 6 years now, this relationship is the first relationship I had that’s felt very secure. Of course it’s my first relationship that’s lasted this long. I had 2 previous relationships, one of which ended because we were too young (we were 14, lasted a year) and the other ended because he cheated on me multiple times. I was 17 and he was 21, lasted 10 months but felt like an eternity btw. Anyway, I think that relationship changed me idk. With that guy my instincts were always on point, like I always had a feeling he was cheating on me and I was always proven to be right (3 times to be exact before I broke up with him). Now with my bf he never once cheated, he never looked at another girl that caused me to get jealous. He’s very indifferent towards other girls. But somehow, I feel something in my gut that I can’t explain. There’s just something off like our relationship feels too perfect to be real. I mean this guy cooks for me, does my laundry, buys me groceries without me even asking. He knows exactly what I’m thinking it’s freaky sometimes, if you quiz him about me I bet my life that he will definitely get a perfect score. He doesn’t even watch porn because he said he prefers me! Like I tell him to watch porn and go fantasize about other women but I swear he doesn’t. How do I know this? We live together and I have full access to his phone whenever I want. All he really does other than household chores is play videogames, study, go to the gym, have sex w me whenever, wherever or however I want. It’s just too good to be true, right? Or am I just self destructive?

P.S. please don’t be mean to me