Okay so this is more controversial than I made it seem initially, so let me provide some context. EDIT: If this is too long, please read the edit at the end for a briefer explanation.

My boyfriend and I were each others first, and we dated for a while, over a year, so we really had built up a connection. I broke up with him for reasons unrelated, and we had been broken up for about a month and I realized I felt like I had made a big mistake, and went back for that connection. We started talking again, I came over, we slept together, and then we started talking. He told me he had slept with someone else in that time we had apart. At first I was fine with it, obviously it hurt a little, because it felt a little soon and the fact we weren’t each other’s only anymore made it feel a little wrong, but I broke up with him nonetheless and what he chose to do shouldn’t be my business and I told him that. I told him that I’d be okay with it and everything, and I thought that was that. But now upon thinking about it before, I realized we slept together before he told me he moved on and did it with someone else. When we did it again, it didn’t come across in my mind that that was even a possibility because we weren’t apart for that long, but it didn’t happen and he didn’t tell me BEFORE we did anything together, and to me that feels a little like a violation of trust, and that’s why I’m curious as to see if I have a valid reason to be upset. Yes, I did break up with him and how he chose to recover from it was of his own bidding, but I can’t help but to feel a little upset that he didn’t tell me before we started getting back into it, especially since I was under the impression that we were still each other’s first and only. AITIAH?

Edit: I would like to mention that in NO WAY have I shown him any disrespect, I actually thanked him for being vulnerable enough to let me know and I told him it was okay, and I TOLD him that I know we were separated. HOWEVER, we ARE BACK TOGETHER AS OF NOW, I felt like the fact he did not tell me he slept with anyone else was a MINOR violation of trust in the fact of sexual safety and STD transmission, and he KNEW that I was under the impression we were hadn’t done anything with anyone else. Again, I’m not holding this against him and of course I’m willing to move on, so this was just a question. I do not believe it’s wrong to want to know if your partner had slept with other people for sexual security.