So I was on the laptop, on my partners fb (as I often am) and I know I shouldn't have but I went onto his archived messages. Nothing to do with trust issues I was genuinely just snooping. I found a message from a gf he had at 16 (it was dated a few years ago) and she basically said she needed to talk to him. His replies are like we're over I don't want to talk to you etc etc and she said I know you won't believe me but I need to talk to you about being pregnant. She then went on to say she'd had a scan and was having twins and they were his. His reply was no the dates don't add up, we weren't together then because that's the month you cheated on me so they're not mine (surely that means they were together then though??) and she just said we were together I know this because we did XY and Z on such a such date but if you don't want to be involved that's fine I'll let them know when they grow up. I went on to her profile and there is a picture of 2 kids who look about that age so the pregnancy must be true.
I have never heard anything of the sort. A total shock to me. I feel sick, I can't stop thinking about it.
Less of a AIBU but more of a WWYD? If I bring it up the argument will more likely turn into why were you snooping and not actually focus on what was said. I know I shouldn't have snooped but I did and TBH I really wish I hadn't 