Our sitches are similar in many ways. My W has cooled on the talk of moving out, but I am writing that off as a down moment. She swings back and forth by the week right now.
Detaching is hard and I believe even harder when you have young children. It also makes this more confusing because in one sens you have a parent checking out and basically saying they are willing to give up time with their kids in order to pursue what is hard to call anything but a selfish pipe dream.
I haven't found a magic cure, but I do find comfort in the DB process. Most of my GAL'ing centers around the kids, although I have trying to use this as a way to meet new people along the way.
Not sure I have any great wisdom for you, but it is comforting to know there are others out there pushing to save their R and not just because you have children at stake.
There are days and hours I swear my wife has been replaced by someone -- her actions and words are that confusing. Luckily I am becoming numb to the venom, anger and threats. Additionally, these three things are SLOWLY reducing -- at the moment anyway.
Keep up with DB and GAL'ing it is making detaching a little easier for me anyway.
W: 40 Me: 44 M: 12 years Together: 14 Three children (S-4, D-3, S-1) EA started in April, discovered in 07/12 ILYBNILWY: 07/12 MC Started: 09/12 Patience Tested: 1,245,963 times since 07/12