You have time to help her knock some things off of her list, but you are passive to commit time to your kids? I understand you are still early in this and things are difficult to see. Don't take your time with your children for granted!!!
Also, your W knows where you stand. No need to tell her that you want your family together 7 days a week. You can't talk your way out of something you acted your way into. As cliche as "actions speak louder than words" is, it holds complete truth.
Keep this question at the forefront of your mind when interacting with your W..."Does what I am about to do get me closer to my goal or further away?" Much of DB'ing is counterintuitive. It is a learned skill.
Me:45 ExW:48 M:04/97 3 Bombs & 2 ReCons 1st BD 11/10 D Finalized 4/20 D-16 S-14 Going in one more round when you don't think you can. That's what makes all the difference in life.~Rocky Balboa