Would you consider updating a hook up site as cheating?

Miriah

Okay. My fiance hasnt cheated on me, as far as i know. He swears he hasn't. But he's been acting off lately. Idk if it's just because im 34 weeks pregnant and more clingy and hormonal, or what, but I've been really insecure lately. He let me use his phone bc mine was on the charger. I was just looking up diaper bags and trying to find a cute one for us.. his email chimed, so i told him, and i checked it. He never had a problem before, why would he now? Come to find out he's deleting all of his emails... a few new ones came in, one was for a site called lonely wife hookup. And it had his log in info.. so i checked it out on my phone. He added pictures, messaged someone, and was on a fuckin hook up site. So i comfronted him about it. Like always, he laughed at me. Told me i was being a psycho and he didnt do anything. I sent him screenshots of it, but still, he denied it, laughed at me, called me an idiot and psycho. Refused to talk to me about it. This was a couple of weeks ago. And I'm still hurt about it. He has an old phone here at home, he had fb messages pop up. He exchanged numbers with this girl that i guess he went to school with. He was getting something from her for a friend of his is what he told me. I swore i seen her name on his phone bc she texted him in the middle of the night, again im just crazy and stupid. Well he wont let me see his phone now. He doesn't think he needs to reassure me that he's not cheating yada yada.. i think differently. For the past week or so he's left almost every night around the same time, gone for 2+hours each time, hes met up with her too, im not allowed to go which pisses me off to no extent. He tells me what he's doing, granted, but it never makes sense. So im a little skeptical. He doesnt think i should be. But if it were the other way around, he would of left me already... am i wrong?

He admitted to updating the site, he said he just wanted to look up pictures, bc he cant exactly watch porn in a room next to me where i can hear it. We don't have sex. I magically got pregnant one time out of a 6 week or so period. Now that I'm further along, we've had sex maybe 2 times in the past 5 months.. if thats the case, then why deny it and lie to me about it? Why do you need to update pictures on a hook up site? Why not just watxh porn and use headphones? (He'll only conversate over texting btw)

We've been together almost 2 years.

I'm just more hurt, than anything.