my first post, haven't I been hurt enough?

Just not sure if it's worth it to put forth that much effort, on my part, just don't want to deal with it, I feel I'm probably better off without him, do I want to be in the same postition years from now, thinking, I should have let him go a long time ago, need to do some more thinking on this, and I am in therapy, so is he, separately right now, thinking about the couples counseling. Thanks everyone for your input.

You have to decide whether or not you can live with what he has done. If you are not sure what to do...
Suggest that if you are to work on it there are stipulations.
1.Counseling for BOTH of you.
2. His willingness to be totally accountable to you, cell phones, free time etc so that you can learn to trust him.
3. Remove all ties with this person, if he works with her, find another job, no frequenting the places that she does etc.
If he will not agree to all of the above then cut him loose! Marriage takes 150/150  and he screwed up. He has to be willing to go the extra mile and then some or NO DEAL!
It has to be your choice if you can live with his affairs. Infidelity is a hard thing to forgive and only time will tell if you can do it or not.
Let us know what you decided.

My first ex cheated on me during our 29 year marriage, after the first time (7 yrs into the marriage), he swore never again, said he loved me and begged forgiveness. I stayed and believed him all his promises, only to to have him walk out on me after 29 years to be with his HS sweetheart!
So, for me, I regret not walking away the first time, for believing he would never do that again!

Of course he broke it off with her. He needs to get you back. That's the way he likes it. He likes being with you and having something on the side. Once things calm down he'll be off again looking for someone else. It's the love part that makes this so hard isn't it. You know you deserve better. You know how disrespectful he is being and how cruel it is...yet Love is a POWERFUL emotion. You are going to have strong moments like now and then you'll have weak moments. IMHO you are doing the right thing by getting away so you have time by yourself to figure out what is best for you. I hope you find the strength you need in this VERY difficult time. Please remember that you deserve respect and honesty. Remember the wedding vows. They mean something. They aren't just words. Marriage isn't just a piece of paper. If you go back he's got to know that his old lifestyle is over. Good luck!!!

Cut your losses and move on.