Does this make my boyfriend gay?

I'm playing on here because I have literally ran out of ways of figuring out my situation without having to put my significant other on blast to family or friends . So I figured I would Just ask the trans and gay family straight up. First of let me start off by saying that I have been with my "straight" boyfriend for over 5 years now. I have never had any thoughts up until recently . I did some snooping and yes I know I shouldn't of so let's not state the obvious . But I first found him posting himself on websites such as craigslist and what not only looking for women , soon it became TS. One specific email back to him was a man asking him to do DISGUSTING things to him in exchange for money. I later found him having conversations on KIK, via email etc with what I'm almost sure are trans men. And his only concern was to make sure they had tits. That was all. We did break up for this matter(not that I have a problem with the trans family) I just want someone who's about me and only about me. But we did get back together and now things are getting weird . He's doesn't seem to want to touch me and when he does it seems forced or just wants to touch my asshole. He seems angry with me at all times. And he locks himself in the bathroom or our spare bedroom for so long every morning and every night for more than a normal time frame . I have confronted him about what I have found and what people are saying because somehow people are finding the same info I am but when confronted he gets defensive and all he does is explain how many "bad bitches" he can get with. Doesn't prove anything to me at all because a lot of gay men are sexy as hell lol anywho , I just don't know what to do nor where I'm at in my relationship anymore. Any input is welcome. Thank you!