I don't think vacuuming or cooking in this situation is being Mr. Nice Guy. I think it's being an adult and pulling your weight. It sounds like you have stepped it up in this area, so I'd keep that up.
Likewise, I'd listen and validate when she shares. As you point out, this is a 180 for you. But don't pursue. Let her initiate.
What are you doing to GAL and to be responsible for your own happiness? The more you work on that, the more unavailable you will seem, without needing to be cold or dodging your responsibilities. It will probably feel like acting at first, but the more you do it, the more you will find moments when you are fully into that and forget about her. Someone who is passionate about interests and internally happy and confident is very attractive. Not to mention a lot happier person to be!
Me: 44 H: 44 Kids: 20, 16, 16, and 10 Together/Married: 22 years H announced he was emotionally detached and considering D: 4/4/16 H announced he is going to try to stay and reconnect: 5/1/16
