Ex Husband Being Insane About Kid's Sleepover.

Location: Illinois. I just filed requesting a parenting coordinator for a slew of reasons not relevant to the topic. The relevant point is that whenever I take legal action, my ex starts to try to find anything at all to attack me.

Anyway, I dropped my daughter at her friend's house for a sleepover yesterday. The ex messaged me, demanding that I inform him when she goes on sleepovers and send contact number and address. This is not a requirement of our parenting agreement, and he has never provided same info to me, but I send the info over anyway. He sent two more messages, which I didn't bother to open (he has a history of harassing me, so I try to ignore him when he gets like this), and then later called me (we have a court order to only use the parenting app); I ignored the call. I come to find out from the mom of the sleepover that he randomly showed up at their house, insulted them by saying they're in a bad neighborhood, and hinted that he would stay outside their home overnight. He then sends me a text (again, only supposed to use the app) about how I'll just drop my kid off anywhere and with anyone. He claimed concern about the neighborhood to the parents, but probably doesn't remember that his middle daughter's best friend in high school lived on the same street. So... I call bullshit.

My daughter also said that he kept insisting on taking her and her friend to some place the next day, and she had to remind him repeatedly that it isn't his weekend.

I think he is either manic (his family eventually told me he is unmedicated bipolar), high (he is a pothead), or both. Though, one of his other daughters from his previous marriage told me that he had followed her around town in his van when she would walk to school (on her mom's days), creeping her out. His eldest daughter (refuses contact with him) had to threaten to call the police on him if he wouldn't leave her alone. He also has a stalking charge on his record, and had put a tracker in my car during our marriage, so maybe this is just him being himself and not drug-related.

I feel so bad for my poor kid, as I can imagine this is stressful and embarrassing. I am going to contact my attorney tomorrow, but want to know if there is anything I can do now to get my ducks in a row. So far, I made sure to get it via text/in writing from the sleepover mom that he showed up at their home unannounced.