I knew a lady who contracted HIV from her husband who slept around. She didn’t think of using protection as he was her husband. She had no clue that he had unprotected sex with someone else. At the time I knew her she just started develop AIDS, she lived HIV positive for a long time still being healthy, but it caught up to her. Sad story.

Of course it’s possible that these cheaters are all using protection. But I doubt it. Big price to pay for a bit of fun. I think even if I was unable to move on and had to stay married, I personally would never touch him again because I’d just not trust. Plus he is still in relationship with her. So if they are still doing it, it’s just scary stuff. Too dangerous

No men is worth getting STD, especially not curable one like HIV. Imho of course