Thanks for your question,
To a large extent it sounds like you've done the hard part, which is truly taking a look at yourself and your actions and taking some steps to create some positive and permanent changes in your life. Right now it sounds like she needs to get to a point where she is ready to talk, and when that happens it seems like you've done everything correctly to put yourself in the best possible position to make this work properly. If she has been frustrated with the relationship for a long time, it may take her a while to trust that the changes you're made are not just temporary. In that case, sometimes the best thing you can do is to continue to live your healthier and positive lifestyle in the hopes that eventually she is willing to talk about things and see it for herself.
If you haven't already expressed how you felt in a voicemail when you tried to call her, it may help to write her a letter/email discussing the changes that you've gone through and the different perspective you now have on the relationship. Writing it out will make sure that you say everything you need to say to her, and even if she chooses not to respond right away it will give her something to think about. At the same time if you feel like you've already made that clear to her, then there may not be much you can do until you see some signs from her that she is at least willing to have a conversation with you. Deleting you does make it seem that she is still emotional about your relationship, and that is typically a sign that she still needs a little space at least in the short term.
In most cases if you are patient, most likely you will have the opportunity to talk things through with her again. But picking the time properly and making sure that she is emotionally ready to talk will make the conversation much more productive, and sometimes trying to talk before she is ready can actually work against you. Unless you see some indication that she is ready, the best thing to do may be just to continue on the path you are already on with the idea that it is going to show her the consistency that she is looking for in the long run. I definitely wish you the best with all of this, and if there's anything else I can do to help please let me know.