Great advice Frank, at any time she could have left when the police officer instructed her to do so. Own your part and only your part.
Now it's time to focus on building a better relationship with your kids. Even in that arena you cannot control what they think, it may take a while but the truth will come out and the X will be found out if you just stay true to who you are. Unconditional love is tough at times...
You can not change your past, but you can ruin a perfectly good present by worrying about the future.