nsw1222, sure it's possible your W has codependency issues too. My W is a codependent person. Her problem though, something only she can choose to work on or not. Nothing we can do about them right now. What we can do is work on our issues. One good thing for you now is that you realize you are codependent. That is great that you recognize this as you can work on this issue. Recognizing things you can work on for you should be your silver lining.
As far as you W saying she wasn't happy, I wouldn't read too much into that statement. That line seems typical for many WAS. I know you think about if you do/change things about yourself will it make a difference to your W and would she come back. Well, no one has a crystal ball but if you make these changes you will become a better person for you. I know that's probably not the answer you are looking for but you will become stronger by doing your changes for you. In time your W might just notice your changes and then who knows what could happen. Don't you think it's worth a shot?
M 38 WAW 36 Together 19 years Married 12 years Bomb/Separated Oct. 09 I love my wife Sitch