She'll never see what she's missing without you because you told her you'd always be there for you. She can pursue other relationships and keep you doing things for her that she needs from you. Great setup for her and zero incentive to change anything. You should have 180'd her and shown her what it would really be like without you.
Is it too late, or do you think it's possible to still 180 her and let her feel what it is like without me?
It's never too late. Even after a divorce it's not too late. Millions of divorced couples end up remarrying their ex's. You can't control anything she does but you have 100% control over yourself. Become the best/most attractive version of yourself you've ever been. A catch. A prize. Either she'll want you back or many other women will want you. Trust me on that one, I know.
So, do I go back to setting up hard boundaries and being distant in communication then?
Married 9: Together 11 M:37 W:35 S:2 D:7 Bomb dropped 6/3/2017 W moved out 7/1/2017 Separation Filed: 8/1/2017 Modified to Divorce: 8/21/2017 Divorced: 10/5/2017