My only comment at the moment RBG is when you say you will continue to develop yourself in the hope that it makes a difference to your W.
My question to you is are you doing it for you or for her?
I see you working on you while looking over your shoulder to see if she is watching. By all means, leave the door open but don't stand holding it, walk away from it with your head up into a future that you want. You can become the best guy out there and she could still go down her own path. If you are doing things to hope to see a reaction then they will not stick, change your mindset to what you want and those changes will stick.