I have a feeling that my boyfriend was glancing at another woman while we were being intimate.

I need some advice. I'm a 33-year-old woman, and my boyfriend is 29. We've been officially together for a year and a half but had been seeing each other for a long time prior to that. Last Friday, we enjoyed a wonderful evening together. We had what I thought was great sex, and later, I was giving him oral pleasure while he played games on his tablet—something I find fun to do occasionally. A few weeks back, I noticed he had been emailing a woman he hadn't mentioned before. I spotted it a few times when he was on his tablet or computer (I haven't gone through his personal things). I tend to be insecure due to past experiences, so I asked him about her. He assured me she was just an old friend who had reconnected and that there had never been anything romantic between them. I was satisfied with his explanation and chose to trust him. On Friday night, while I was giving him oral sex, I was under the covers for a bit before emerging. He placed his tablet on the bed, and I continued. He held my head down as I was performing oral, which was fine by me since consensual activities like that are part of our dynamic. However, he was notably forceful this time, but I didn't dwell on it. We finished up, cuddled, and went to bed. The next day, while he visited family, I sat down to do some work on the computer. Noticing that one of his games had been left open overnight, I didn’t realize I was logged into his Google account. I intended to buy Christmas gifts, so I searched my browsing history for a tab I had used the day before. To my shock, I saw multiple Google searches for the woman he’d been emailing, along with a Depop picture of her—just a torso shot. This was a bit concerning, especially since it was past 11 PM when we were in bed together. I thought we shared a lovely evening, with him mostly playing games on his tablet, and I really believed there were no issues in our relationship. Now I’m left wondering: Was he looking at that while I was giving him head? Did he sneak off to check it after we were intimate or when I stepped outside for a cigarette break? Could this just be an innocent situation that I'm overreacting about? This uncertainty is driving me crazy—I feel betrayed, unattractive, and disrespected. I’m unsure how to approach this without risking our relationship, as I am afraid he might think I violated his trust by looking at his account, even though that wasn’t my intention.