Hi (((DFS))))
My heart just breaks for the children caught up in this madness. It just isn't fair.
But you have a good angle on things...time to step away.
I'm not sure what I would do or not do given the CYS situation, but the less you entertain the AGF with even the least bit of attention, the less time she will probably spend harrassing you.
I would stop all contact...and if she shows up again call the police. At some point someone will see the real problem at hand.
Prayers for peace
(((Hugs)))
Cece