Any updates, Pumped? I hope you're figuring things out. Your situation sounds a lot like things were with my ex. It came to a point where at about the last 6 months we were together, she slept on the couch and I slept on the bed. We didn't talk much at all. We didn't do anything together, we were just seperate people. Roommates, like you said. I too supported her and she didn't have to work. It took a long time for me to figure out what I needed to do. I still loved her...at least I thought I did. And like you, I knew that if we broke up, my life would be COMPLETELY different. I just had to really think about something. Did I want to spend who know how much time living unhappily? Did I really want to continue being in a relationship that gave me nothing? There was no sex, no affection, no conversation and no common interests. Then I had to ask myself if it was worth it to take the chance and face flipping my life around by breaking up with her. I decided it was worth the risk. I knew it would be a long period of readjustment, but I knew in the long run it would be the very best thing for me.
I finally just went and sat beside her and said, "I'm not happy". That was how the conversation started. I told her exactly everything that I had been thinking about and it turned out that she felt the same. Neither of us were sure how we were going to end it though. I think it was harder for her than me though, because she had to start a new job and learn to take care of herself. It didn't take her long though to find someone else and leach off of him. Now she's back in the same situation. I think her biggest problem was her self esteem. She was never able to take care of herself and it made her unhappy.
I said before that I thought I still loved her when I broke up with her. It's been a year and a half since then and now I know that I didn't really love her. I just loved what she used to be. I was always hoping that the woman that originally got my attention was going to come back. She never did though. The scariest thing about breaking up was wondering what would happen next. Well, I ended up moving to a new town hundreds of miles from where I was. I found a new woman, who I am married to now. I am happier than I have ever been now. It I know it would've never happened if I didn't take that chance.
If things are going better for you now, then that's great. But, don't spend time driving down a dead end road. If the feelings are gone and you think you'd be happier with another woman. You should leave. Life is short, man. Don't get old and wonder how happy you could've been if you'd followed your instincts and went with the woman you feel could've made you happy.
And don't worry about your wife. She'll be fine. After a while, I'd be willing to bet that she ends up much happier too. Whatever you do, don't spend years of your life trying to fix something that is broken beyond repair. Make yourself happ, my friend, you deserve it.