DOOD! Can one person turn a marriage around?? Read what you just wrote. You telling us you haven't read the Divorce Busting books yet?? While your situation is going slowly it sure sounds like you are doing a great job of DB'ing, whether you know it or not. There are plenty of people who would be so greatful to have their spouse react the way yours did.
It sounds like she DOES miss you or at least is having second thoughts about it all. I would say stay the course and the next time she comes to drop off the kids, if you detect the same mojo from her, invite her to hang out a little. Nothing heavy, invite her for an ice cream, or to play a board game or watch a movie with you and the kids. Anything light. Sounds like she is digging you, the next step is showing her it is safe to be in your space again. Think of it like trying to get a squirrel to come eat out of your hand. You want her to trust you, that you expect nothing in return. NO sudden moves. You just want the squirrel (her) to see you won't hurt her and that she can come back for more.
To me you sound like a natural born Divorce Buster. Keep up the good work and keep us posted.
Me 44 She 46 S13 D9 M18 T23 3 years DB'ing Successfully busted