He called cps?
Had a similar thing happen to me. I was taking my ex back to court for not paying child support. One day I get a call from DHR and they want to come to the house to talk to me. I immediately suspected it was my ex who called and then later on, he admitted it to me after the visit. It caused alot of anxiety but everything was fine. I explained to the DHR lady what was going on with my ex and taking him back to court. She rolled her eyes and said that the case would be closed and not to worry. She had to visit my son's school to talk to the counselor as part of the process and then a few weeks later, the case was closed. She called to let me know.