Did you save the emails or texts where she told you to come get them? That would be a very good defense to thwart expensive litigation.
I would try not to enter into shared custody of pets with allocated time. The relationship has ended. How long will this ended relationship contact continue?
her prior relationship guy is an idiot but all the rest of the info on him comes from her so what's true or not idk.
One of our members famously quipped, if the ex's mouth or tongue is wagging, it's likely lies (or a personal perception).