Keep the focus on you and living your life to the fullest. Leave a light on in the window and the door ajar and if she does make overtures to want to step over that threshold, then be patient and don't rush the process. She will need to do the hard and necessary work to gain your trust once again.
Dig deeper for patience and keep those expectations at zero.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.