1. If she's that broken, your role as parent demands protecting your kids by minimizing her custody. Earlier you were giving up 50/50 custody out of general concerns that switching homes wasn't ideal for a 1-2 y/o. The alleged mental disorder overrides general considerations. Joseph and I went this route with our ex-wives.
2. If she's not that broken, your role as a parent demands dropping the villainizing narrative and figuring out what YOU can do to foster a better parenting relationship. Beyond that being best for the kids, feuding with the parent who has more custody rarely works out well. I'm now (after a time) on this path with my ex-wife.
I hope you find the right path for you to be free of drama while keeping your kiddos safe!