Like said above - just be you, and become the BEST you. It seems incredibly counter-intuitive, but time and space are almost always completely necessary for a WAS to experience life without you around to blame, and if you're lucky, come to their senses. Before DB, I sent the most beautiful letters to my XW, roses, fun gifts, invited to fun places - and all she did was smash them into the ground. When I finally realized I deserved better, and went dark, it took 4-6 months of almost no communication, but she did come back.
It didn't work out for me because at her core she is a very broken person, but take it from someone who learned the hard way; it is all but guaranteed that continuing to contact her will have the opposite result of what you're seeking.
