Not a good idea either, in my opinion. She needs to do things for HER, and you need to do things for YOU.
You sound very enmeshed, or co-dependent upon each other. My wife and I were too -- VERY much so, and very unhealthy.
When you say "hours at a time," do each of you feel comfortable being able to go somewhere for 2-3 hours and do something by yourself or with your same-sex friends, while the other takes care of the kids? Say, once a week?
