She knows she will never have the drive/determination/motivation or whatever the fuck you want to call it to actually stop stuffing her gaping pie hole. She has NEVER wanted to exercise in her life, she doesn't have any intention to start now. She (as you said) baited him into this. Look how much attention and "sympathy" she's getting from this. She's finally getting the attention she feels she deserves. I can't wait to see what this ridiculous loser conjures up next to get her next attention fix. She'll probably SIDS her kid or something.