Hey FY, I love your suggestions and the others, too. You know I have felt for quite some time that you needed to do something different. I know all about those pesky ants you guys have. LOL!
Your sitch is different than most. And as much as I can offer advice, you have to follow your gut.
My gut has rarely disappointed me.
She does need to see that you will not stay in a marriage like this forever. I dont think she will unless you show her in some way.
So, slow and steady, yes? Pick one thing, try it out, let it lie for a bit.