I decided for the first ever time to give her a taste of her own medicine and responded saying what I'd done for her to support her over the years. She didn't take It well and sent me anoyher message ranting away back.
in general, as good as these things might feel in the moment, they can escalate long standing conflict.
what do you think the likelihood of her following up on a threat is? does she have a history of doing so?
whats the story on the car loan? it sounds like thats the place of frustration between the two of you.