About 10 years ago we lived near this family that were friends with our family. The couple was a little older than my wife and I but not by much. The wife and my wife liked to hang out, but whenever I went over to their house, it seemed like the husband was very flirtatious with my wife. No huge red flags or anything, just joking a lot and laughing a lot and seeming interested. I didn't really say anything to my wife, but I always had a bad feeling about the dude. I think she thought he was just being friendly. We moved away from there for many years but ended up moving back about 3 years ago. We didn't really live in exactly the same area, so my wife and the other wife chatted from time to time, but didn't really hang out. She did call my wife though when her husband started cheating on her with someone from work. He apparently was very open about flirting with other women and when she found out he wouldn't stop seeing/sleeping with the girl from work. She told my wife that he told her he always regretted that they had as many kids as they did (4) and that it was her fault. So, turns out all my bad feelings about this dude ended up being true. The really crazy part is that the dudes wife still won't leave him, even though he is basically openly cheating at this point. It's sad. He's such a loser.