Quote: Another part is that I worry some of her behavior is motivated by the fact that she still needs me for stuff. If everything suddenly fell into place for her (ie lottery, OM), I wonder what my role would be.
Why are you even thinking about this? Really? You have a nice list of positives. You and her are getting along well, stop analyzing every little thing that happens. You say most of the favors involve the kids. This is a bad thing? She wants you to be involved in the lives of her kids and she wants to be involved in your life. Relax and just enjoy things for a while without constantly wondering if there is a motive or something else going on that you don't know about.