“Women who haven’t found their man yet in their 30s”? You do know that life is about more than finding a man?
That comment aside, your relationship sounds incredibly unhealthy. Relying so much on another person to keep you happy and rescue you is not only unhealthy but also destined to fail. Trust me, I’ve been there. Your post is really crying out with how little self-esteem you have, and how worthless you feel as a person in your own right - you feel like your husband gives you the happiness, purpose, love and worth you don’t have within yourself, right?
Well, he doesn’t.
No other person can give you that. It has to come from within you. You have to start thinking of yourself the way you think of your husband - as some wondrous beacon of love. Respect yourself. Treat yourself like someone you’re dating. You won’t ever heal if you look to fill that hole with external validation.
The fact you kept sleeping with him while he was seeing this other woman (and yes, it was shit of her if you were a friend, but she is not solely to blame) is indicative of a serious lack of self-respect. Again, I’ve been there! I put up with some dreadful behaviour in past relationships because I thought the ultimate goal was just having them stay with me - that meant I was worth loving and had worth as a person. Well, that’s wrong. Their behaviour was not a reflection on me, but on their own flaws, and as soon as I started to believe I deserved more and better, and gave myself the love that was missing, my happiness skyrocketed.
You’re projecting all your anger on to her so you don’t have to confront those deeper issues, it seems. I would strongly suggest going back to counselling and taking on board what they say even though it will be difficult and uncomfortable, because you won’t ever stop being bitter otherwise, and the only person that’ll hurt in the long run is you.