Bit of a long one, but here goes…
About 15 years ago, I briefly dated a guy from my uni friendship group. It lasted around 4–5 months, then fizzled out naturally. We stayed on friendly terms and still saw each other within the wider group.
A few months later, he started going out with a friend of mine also part of the same group. I was genuinely happy for them, and we all stayed friends. They eventually got married. I’m married to someone else now and we still occasionally meet up.
Fast forward to a few weeks ago: my friend (his wife) mentioned they were celebrating their anniversary. I was a bit confused, because I remember their wedding being in September (I was there). She seemed a bit flustered and said it was actually the anniversary of when they first got together.
Which made me do the math and realise they must have gotten together while he and I were still going out. We were exclusive at the time.
It’s left me feeling a bit blindsided and betrayed. On the one hand, our relationship was short and everything worked out fine in the end. But on the other hand, I feel like if I’d known that at the time, I’d have cut ties with both of them. It’s kind of shaken how I see the friendship.
AIBU to feel a bit hurt by this, even though it happened ages ago? Should I bring it up, or just let it go as ancient history?