I wonder how much of your depression can be contributed recently by your wife. It could be that your f feeling that you don't deserve happiness and perhaps even the feeling that you don't want children may change if you were with a loving, faithful lady? Please remember that its is always better to be alone than with the wrong person. It really is true.

I do feel for you. I don't know how you can bounce back as a couple from this with all that has happened. I don't think I could trust someone who cheated on me once, let alone twice. From all you write, it sounds like you've made up your mind and that you've had enough. You know what? I think you should be proud of yourself by sticking by her for so very long with all the things she has done, and even more proud of yourself that you carried on recently with therapy. Therapy doesn't always save a relationship, but it can give you the knowledge and the strength to know when to call it quits.

Hugs