Yeah it is quite a trap. I think my willingness to walk away (repeatedly) increased attraction. They say they will work on things, change, blah blah blah.... and in this girl's case I really could see her trying to change, but it looked like she was trying to walk up a down-escalator. I could see her seething under the surface and expending a lot of effort trying to control her emotions, outbursts, complaints, jealousies, insecurities. It would only last 1-3 weeks and then her natural, true nature would finally bubble up and explode. All that "progress" is lost. And then I dump, and then she begs me back yet again.