awkward af story incoming, avert your eyes if you don't want to cringe at teenage drama
The DM's girlfriend was an unfortunate target of thirst, in this particular case from a 16 year old (she was 19 or so, I think?) who had at least the benefit of being 6'5'' and an attempt at a beard making him look slightly older; in one earlier instance, he "accidentally" spanked her with his foam sword (not an awful euphemism, thankfully) during a LARP, so things escalating had something of a precedent. Unfortunately.
One time in the summer we were doing a 12-to-12 D&D session, going on to midnight. At some point in the night when no one else was around he apparently confessed his feelings for her and told her, word for word, that she needed a "strong lover" unlike her boyfriend, the DM. He later said that being a bad drunk ran in his family because he was German, but everyone knew he'd been downing nothing but Coke the whole day. For some reason he never ended up showing up to any more LARPs or D&D sessions with us ever again. I'm pretty sure it was the DM who just kicked him out of the group, but it was a smart idea for the guy to get out anyhow because the girlfriend's older brother was in the same group.