Sounds like her vindictiveness has come back to bite her and she's looking for an ally. Almost makes you pity her, doesn't it?
And if she has truly changed, it's like The Boy Who Cried Wolf. She did it to herself. Too bad.
When I erase calls and don't want to listen to the entire thing, I listen to the 1st breath, because there's always a split second b4 the vox actually shows up, then hit "delete." You may have to do that.
Good luck.