Sorry TMI!
When I was 17 I was experimenting sexually and gave a random guy a BJ at a house party. Turns out his best mate was actually going to end up as my dp and the father of my two dc's.
Quite soon after we got together dp fell out with this friend, partly due to... that, Partly due to the friend saying dp had changed since we started going out (17 and we thought we were so deep!)
Now the guy has quite innocently bought a house opposite our dd's school, on the next road down from us. I've already bumped into him twice (no acknowledgement from either of us.) Should I mention it to DP? I think he'd laugh but also (strangely) might get a bit paranoid?