College years, undergrad time frame... KK (my wife) and I were engaged. Tradition at the university was a big homecoming football game, lots of parties, etc. KK and I attended the game together, a homecoming date. I didn't know it at the time, but she had started flirting with a guy, Monty. She excused herself to go to the restroom, a ruse to sneak off for a quickie fuck and suck with Monty under the bleachers.
I heard rumors about it later, which I chose to deny and ignore.