A 17 year old woman came & done work experience in my office. My boss' 65 year old colleague met her and, about a year later, slept with her. She now works for the colleague and I think they are still sleeping together.
My colleagues know about this and find it weird but treat him the same as always. I can barely look at him I'm so disgusted. AIBU to think it's beyond sick and creepy for a 65 year to have slept with a girl still at sixth form and think that those of us who know should have the bare minimum to do with him?