Seriously, why are you bothering with this stuff?
Earth to lisa1471 - Your husband has a **** buddy. He may or may not care for her as a person. She may or may not care for him as a person.
But that does not matter. He is ******* someone else while he is still married to you, and apparently shows little to no chance of stopping.
So, unless your self-esteem is in the toilet, why are you obsessing over this? Why are you staying? Why are you giving a damn about people who might be giving you STDs and certainly aren't respecting you?
I'm sorry. I know how harsh I sound. But I've been nice and you haven't listened to ****.
Wake up and smell the coffee.