I've been told I'm overreacting, what do you think?
I have a teenage DC with ex and a good shared parenting relationship. For the first 3 weeks of lockdown I decided to not let DC go to his dads at first until we knew more and things settled mainly because I'm in the late stages of pregnancy.
After the first 3 weeks I was happy for him to go for the weekend on the basis that their family (ex, his wife, their DC) were all healthy and following the same measures we were.
This worked fine at first until the latest planned visit when my DC informed me that their DC was at a sleepover/childcare arrangement at a different family of 4's house (in a different county and not shared parenting just childcare) and was due to return in the middle of my DC's visit.
Ex didn't mention this to me so only found out by chance because DC mentioned it.
So their DC would be around 4 other people I don't know then return, be around my DC then my DC would return back to me.
I wasn't happy with this and cut short DC visit to just one night and said the two children shouldn't mix and that also the following week-2 weeks he couldn't go back.
I think they were selfish for making this childcare arrangement for their child and putting everyone at risk and also breaking the rules to suit themselves. Also annoyed they had no intention of telling me.
They think I'm overreacting because the other family are healthy and it will upset their DC not being able to see my DC for such a long time. They want him to visit as normal.
AIBU to say tough shit? It's their fault for breaking the rules and making a selfish decision.