Sounds like the dynamic has truly shifted here. Remember the dance? Keep dancing mate. You are doing great. I wouldn't concern myself about the mindset of your WAS. Let her figure out for herself that the fantasy is just that, a fantasy.
I'm so glad you find yourself being comfortable on your own and able to be a stand up dad for your kids. This is the secrete for me. Be true to yourself and your family. The rest will fall into place, no matter what the outcome.
Me:43 Her:42 M:14 S:9 EA started 2014/03 (or there abouts) PA started 2014/05/30 BD:2014/11/05 I left 2015/10/01 I returned 2015/05/02 She left 2015/06/10 OM still on the go.