This happened to a co-worker of mine years ago. Him and this older lady at work were constantly hanging out and flirting. Eventually the two of them started dating officially. She later revealed to him that she had a son his age. After that happened he was so grossed out by her that he broke up with her, quit his job, and moved to a different state. She was nevertheless "devastated" crying her eyes out in front of everybody during breaks. I put that in quotes because not even 2 days later in comes Captain Simp, a Gen X stereotype, to catch her on the rebound.