Welcome to catch-22

[Big Bruce]

Even if no one responds, it's ok, it's like journalling..

So today was the "visit", we met at the mall. Always my W, kid and one of her parents. (despite my email saying there's no such thing as supervised visits). And because there was nothing to do and the toddler was getting a little boisterous, I proposed going to my place. W immediately proposed another place, said the time was late, tried to say no, but I insisted gently.

Finally we got to my place, I served cookies and refreshments, and the tension eased.
We played a little bit of piano, turned the tv on for cartoons, and I gave a tractor toy to my son, which he loved.
We talked about things of no importance, as if we were a normal couple, laughed and all. It was a pleasant time and then they left.
Not once did we mention the lawyer, or the custody or anything related to it.

Now, I'm left wondering, and that's where you can help me. WHAT WILL MAKE HER DECIDE TO COME LIVE WITH ME?
She has something to lose in doing that. We get along, but because she is at her parents house, she has more space than my 2-bedroom apt. And her mom keeps the toddler all day, which is a big relief. Anything I can do to reverse that?

Is receiving the papers from the lawyer in 2-3 weeks, saying that I filed for the toddler's 50% custody play in my favour at all?

Ladies, what is it that makes you decided to leave a comfortable situation, to go live with a man, knowing logistics will be not as easy there?
Once again, I'm left with the impression that things are ok between my wife and I, but she won't come back! Help!