So sorry to hear you're going through all this misery ((((more hugs))))
I'm afraid that the courts have gone (as so many things have) from the sublime to the ridiculous. Because so many cases of sexual abuses have been ignored in the past, and kids not believed (which was of course totally wrong)- courts believe that children never lie. But they do, and they do especially if pushed by a mother filled with hatred for her ex. It happened to a friend of ours in France, and it was a nightmare.
One of the teachers I used to teach with for many years, and whom I totally trust- was accused of sexual misconduct by a teenager with a grievance- and it nearly killed him, and his wonderful wife.
And one fo our friends here in Switzerland finally got his divorce after ..... 9 years. As his wife manipulated the kids shamelessly- encouraged their repeated failures in school and with apprenticeships, and taken herself and the teenage kids from psychiatrist to psychiatrist.
Yes, you are right to be careful on what you publish on a public site- but I am glad you could come and scream here. My thoughts are with you. Does it mean he does not have access to the children now?