First she has to be attracted to you. Then she has to want to work on the R. Then she has to make this known to you.
The first three steps are all about her. You can make yourself attractive to her by being strong, confident, and frankly, showing her you don't give a damn. Channel your inner Rhett Butler.
That's why you don't pursue her at all. She needs to think she's lost you for good; she might not feel that way until/if her EA ends. But you need to move on, and not just in a pretend fashion, nor as a tactic to win her back.