There is a book that people mention on here that has a good section on pursuit and distance. I recall that when I read it, something in there made a lot of sense. I'm paraphrasing and will probably be way off. I think it talked about how the backing away feels like a game, completely unnatural, and "fake", particularly to co-dependents. I know that it is true of me. We are so used to rushing in before the other person has to do anything or feel anything that it seems so artificial to back off, but I think that is something we have to work on to give the other person the space they need to step forward. Try to think of it more like that.