Boyfriend dosent like sex with me?

I was on the internet looking at porn and I came across a video with my boyfriend. I watched it out of curiosity because that’s my boyfriend and I was jealous not gonna lie. I was immediately disappointed and upset because he was doing a lot of things he dosent with me. He talked dirty, he was moaning and saying stuff that he has never told me during sex. He didn’t even give me 5 percent of the energy he gave that guy. This was 2 months before we dated and he never told me. He said he has had sex with at least 40 men and I let that go but this one stings. He also brought up open relationship and I’m not anywhere near that because I’ve been cheated on 3 times before. I essentially feel lost and hurt. Maybe seems dumb to others but it hurts. I admit I cried and did nothing but cry. Should I be worried about it? I feel like I tried my best to make it enjoyable with him and he said it was good but nothing past that. Again hearing him use phrases and moaning load has never happened. I really love him but feel like maybe he isn’t going to stay loyal to me. Sorry for the rant, I know very emotional and upset. I really would love advice.