I know I've made quite a show of convincing everyone (including myself) that I'm done with her.
Well? Are you?
If not, and it might not be proper DBing, but it sounds like she sniffed around like she wanted to come home but you slapped her on the nose with a rolled up newspaper. I'm guessing she doesn't know what the hell she wants at the moment.
You're W needs to make some changes. But there's a lot of he said/she said with W, MIL, SFIL, and you. If you're not done, and I can't tell if you are or aren't, honestly, reaching out a hand to her right now might be worth it. You'll be nowhere close to being fixed, but maybe if you two have an honest discussion with each other, you may start the process.
Of course, if you're doing that, you're accepting the risk that she is just manipulating you because she's going to have to start paying 'rent' or whatever (nice folks, your in-laws) or is just confused.
No clue what the right answer is, but hope that helps, at least a little.
BD
My latest
Me: 36 W: 35 2 D: 9 and 5 T: 16 years M: 12 10/4/06: Bomb 10/5/06: Ended A 4/22/07: ILYBNILWY