Sexual situation. right or wrong?

I’m a 10-year divorced male of 53 years of age. In those 10 years, I’d seen 2 woman at different times. I am not involved romantically with anyone at the moment
Woman 1: A 42 year old woman I’d seen over the years and is living with a man who doesn’t want sexual relations with her, but wants her around. She came to me for this purpose, and we are good friends and share other non-sexual activities together.
Woman 2: Had lived with me for 6 years. She opened up credit cards in my name, maxed them out. When I came home from work one day I found her in my bed with another man. I kicked her out of my home. And now she wants sexual relations with me after she moved in with the guy (I took him into my home when he was losing his home).
I’ve never been on this side of a situation. And though I’d love to have a relationship again one day, is seeing either woman sexually a good idea until then?
NO! I’ve never been a cad before. And neither woman is married.
Your thoughts?