Do I restrict access or no?

My daughters dad has a son who is 8 years old, his time with him is controlled by his mother and she calls the shots. He hasn’t been able to see him for about a year or so because the mom hasn’t let him come around out of pettiness and spite (idk what the background is of their relationship, but it’s obvious their are some type of emotions involved for her to be acting the way she is)

Anyways, our kids went together out to eat for my baby daddy’s cousin, she knew about it however I didn’t until it already happened (I didn’t go).

He brought her to the water park with him and his family including his son and his first baby mama had an issue with it and stated how it should’ve just been his son and not our daughter.

So.. Yesterday his mom was getting texts about how it was a problem for my daughter to be around (my daughter is 1).

Today my daughters dads bank account was wiped clean and overdrafted him -$2k.. Now my question is, do I just restrict everyone from having her? Like clearly their is more to the story, I don’t want my daughter being the “root of the problems”..

I have other children with another man as well and we don’t have drama, so I’m just unsure if I should continue to be involved in this man’s drama or bail out cause wtf?