Normally I would pretty much drop this other stuff now that she's happy and I would focus more on her, trying to be a better husband and not set-off another argument cycle. I know now that this is probably not the best approach. I know that I need to keep myself mentally, emotionally and physically healthy and continue to work on some of tools described in the resources here.
Part of keeping yourself mentally and physically healthy is staying engaged with others and having a part of your life for yourself. Its a hard thing to do, after so many years (and maybe even some underlying unhealthy beliefs) of keeping the two of you intertwined in every way.
One thing I have learned in all this is that it was my style and preference to integrate more of my life with my partner. Once I started detaching and as Wave suggests, driving my own car, I found it worked much better. DO watch how she responds though, because if she withdrawals and does nothing then its time to find some healthy outlets for her independent of you.
Definitely keep your activities. Keep them balanced and in perspective with the rest of the relationship, but do not drop them.