My ex sister in law and current brother in law are both knuckle heads who are driving me potty! My relationship with brother in law is extremely strained and my husband has asked me to lay off him but I feel his ex exacerbates all his issues and although I've never had a relationship with her (known for a decade but only spoke regarding pleasantrys as really had nothing more in common) I feel I need to express my concerns to her. I've asked my husband to give me her phone number so I can speak to her but he's refused.
Now for some context. They share 3 children ages 3,5 & 7 who are wild! Brother in law has been lodging with us but we are currently fully renovating our small property. Ex sister in law works part time Monday to Friday at a nursery and brother in law works one shift a week at the local hospital as a support worker. Because brother in law works the least he gets shafted with custody and has the kids sometimes up to 6 days a week! However as you can see because he has custody so much he states he can't work more hours and as a result him and his children run rampant through my home with no hope of him being able to afford to move out. They have no formal agreement but I have advised to him they get one, he shrugged off the idea. Ex sister in law will often change her plans when she is supposed to have the kids, and always has some excuse why she can't have them that day. She was supposed to have them last weekend but had a tummy bug, meanwhile brother in law had to have them when he had COVID! He won't put his foot down because he doesn't want to let his kids down, but I won't allow them to permanently live with me. I don't like children and chosen to be child free, I have no issues with them staying the weekend but they're here constantly, I may as well have adopted them. It's all absurd and I've had enough as it's massively impacting on my life, all I want is a bit of peace, quiet and alone time with my husband. Am I being unreasonable for wanting to tell her to sort it out and for forcing a more fair custody agreement?