I read that the same way. I think that if you let her decide to come back, you will be in the same boat before you know it. If you know what you want, you now have to figure out how to get it. Right now you're trying to start the breathing. Almost there, cause you are talking. Then you need to stop the bleeding before you treat the wound and treat for shock, right?
Letting her be in control is not going to do it. Letting her manipulate you is going to cause her to lose respect for you. You'll lose respect for you. She telling you that she'll let you know when she wants to come back, is not a good thing. That's her fishing. Her trying to telling you to come back.
From my perspective you're better off telling her when the time is right, the two of you will discuss it. That you are interested in fixing your marriage, but that you want to do it right and not rush it. That you want a new relationship with a mature, responsible woman who is strong enough to meet your needs as well as strong enough to have her needs met by you.
My $0.04 worth.
AJ
"Our lives begin to end the day we become silent about things that matter" MLK Put the glass down... "Yesterday I was clever so I wanted to change the world Today I am wise, so I am changing myself."