Alias, no doubt about it, this stuff is hard. The vets on here are great and you should listen to what they say. GAL is good. GAL does not come easy for everyone. I have trouble GALing.
I don't think I would mention or thank her for staying home. You will see many posts on the boards about acting "as if". She knows that you don't like it when she goes out. No need to bring it up again.
The headphones drive me crazy! My W used to do the same thing. She has really decreased this recently but will still occasionally put them on. A few of us actually discussed this on one of my threads because they had the headphone spouses too.
Read DB. Read Sandi's tips. Take a deep breath and good luck. Remember, as many have said on here before, this is a marathon not a sprint.
M 37 W 36 T22 M14 D8 D4 8/2012 distanced BD 11/2012 (likely wants D. Feelings have changed.) W move out date: June 8th.