That's not a surprise. My husband's ex will treat him like trash and then wonder why he doesnt' just toss her an extra couple thousand becasue she can't afford her extravagant vacation plans that she's made for herself with the kids this summer. Like she just doesn't understand that treating him badly is not the way to get stuff from him.
He admits that for years, though, because she's a "mean girl", and he just didn't want to be on the wrong side of any of her nastiness, he would simply give in to whatever she wanted just to keep the peace. So I suppose her manner of reminding him just how awful she can be, and then offering peace in exchange for him doing some unreasonably charitable thing for her, is habit for her.
She does this to everyone, though. I've noticed. Some people simply avoid her, others will smile and say, "yes" to everythign she demands, just to avoid the nastiness.
Another example was that she'd withhold the kids, accuse him of violence, threaten to call police if he tried to pick up on eof the kids for dinner (as the kid had requested)... and then she'd get all surprised when he didn't want to just hand over his entire paycheck to her any more ... like alienating the kids from him, threatening him with jail and all kinds of criminal things that would cause him to lose his job, was going to somehow make him feel more charitable.
The best one was, after a year where she had stolen from him, kidnapped the kids, actively alienated them from him to the point where THEY had to go to a few sessions of therapy over it and SHE was ordered into intensive psychiatric therapy to try to reverse her extreme alienation techniques... she testified that some of the things she had done were in anticipation of a reconciliation (RECONCILIATION? after treating him like that for a year?)
I suppose that's one way of getting what you want in life... being a terrorist and promising to back off on hte terrorizing stuff if only... whatever.
If I were you, I'd be holding my breath, waiting to find out what she thinks she's going to get out of her most recent declaration of love.