[M]y G[F] cucked me (kind of) with a guy who never even knew

This story ended up going on waaaay longer than I’d planned. Would come up with a TLDR, but honestly it’s all too convoluted. Hope you enjoy!

This happened a couple of years ago, but for reasons I’ll get into I can’t get it out of my mind right now.

Until fairly recently I was pretty repressed about sex, and my then GF very much wasn’t. She was the second person I’d slept with when we got together, and she admitted once that I was well over the 100th she had.

We had a sometimes rocky relationship, but always cared about and supported each other. During one particularly rocky patch, we decided to break up, but then made up a few months later. I (predictably) didn’t sleep with anyone during those months, and I figured she was probably in the same boat. She was away on a remote placement for her course for half of the time anyway…