its been a dirty trick for years! its often suggested by there family and friends as a way to "control you" and it put the kids in there corner right from the start when they have young kids.
I would watch all contact now! the next stunt is she will call the cops and claim you hit her if you ever meet alone..
these are desperate moves and based on my W and my friends ex Ws they find pure hate for you out of no where... Its some sort of justifying there actions