Just read your other thread. Your wife has accused you of basically being self-centered and never there for her. So you decide to go dark on her? That isn't a 180...it's par for the course. I'm not saying smother her with attention, but you might try showing in more subtle ways that she does matter. In light of your initial statements, I'm even more inclined to suggest you contact her. Meet in person...say you are sorry you didn't get in touch with her sooner. Give her the money (if you had already agreed to) and cut it short. If you get the opportunity though (ie she isn't too angry, isn't screaming at you), I'd suggest you inquire how she's doing and maybe letting her vent a bit. You need to reverse some of the things she accused you of the whole marriage...starting with being completely uncaring of anyone but yourself.
You cannot be lonely if you like the person you're alone with. Dr. Wayne Dyer