Good Dustin! Eventually, she'll tire of bringing up old garbage. She's doing it to justify her reason to leave you. If there is nothing presently that can do this, then the past is what they resort to. If you keep DBing, listening and validating, you'll take out the wind in her sails and she'll be left sputtering with nothing else to go on. That's when reality sets in and the seeds of doubt finally begin sprouting...
