Ex is an abusive drunk. Been split up for 9 years. There is court order in place for him to see kids. He introduced his OH to kids today. They have been together for 3 months. OH was swearing, telling kids they were rubbish at things. Calling my Ex a t*t for playing with kids. OH said my kids were fat and lazy (not true). They both told my kids not to tell me they had met OH.
1 month ago I made it clear to my Ex, in no uncertain terms, OH is not to meet my kids until they have been together for 6 months at least.
Ex's new OH is not the type of person I want round my kids.
What can I do? Can I apply for amendment of court order?
Kids are over 8.