You didn't file a motion to terminate, so most likely MO CS will say it was used for the benefit of the child and you have no recourse.

CPS frequently makes a parent choose between the child and the other parent.

It doesn't in my state, KY. I would suggest that you make a few calls in your jurisdiction, since no one from there has responded.

She can, but it would be a dumb move if he has kept a copy of the offensive messages.

Children do not make the decision. That is on the parents or a judge.

No, he cannot solely make that call. He can cause issues and take mom back to court though, where she can bring up her issues with his mom.

Going to mediation and reaching a settlement is always better than a hearing for many reasons, even if you don't reach agreement in the mediation.

One of you needs to hire a lawyer to draft a new court agreement. The other needs to hire a lawyer to review said agreement and then decide if that...

You will have to choose your children over your husband.

Don't send the checkbook. If her name is on the account she can order checks.