For context, I am divorced from DS’s father and I moved back to the UK after we split up. I have since remarried. XH has stayed in his home country, and DS visits regularly. Relations between me & XH are still quite strained and we are still in conflict over maintenance.
I have recently had an email from his sister asking if their son, who is 14 like DS, could come and stay with us in the holidays. DS sees his cousin from time to time during his visits to his dad, but until now I hadn't seen or heard from any of his family for 4 years.
AIBU to say no?