help needed please, DC & Exh relationship problems

[catkin14]

Exh and I split up early this year. His relationship with all DC's has never been good but it seems to be getting worse.
At the initial split he was distraught for 6 weeks and leaned heavily on DCs (they are all late teens) but then found another partner and so he doesnt need them so much now...

Anyway he 'gave' youngest DC his expensive computer. Fine.
Now DC wants to sell computer for another and Exh is saying he cant, he didnt give it to him to sell and now wants it back.
So far it has ended up with them both very angry, DC refuses to give computer back and exh says he is coming to get it off him.
They have tried to bring me into argument but i refuse.
Im not sure what to do about this. DC needs a relationship with his father and I have done nothing to stop this, but I just dont know what to do.
Do I just leave them to it?

How old is youngest DC?
If older than 15 then I would suggest leaving them to it.
If younger then I would probably want to sit down with both of them and try to mediate a bit.
It's not very nice giving something away to take it back again but it's also not nice to get given something expensive and then to sell it.
They are both wrong IMO.

thanks, DC is nearly 15.
they are both as obstinate as each other so mediation may not work as they both want me to take their side.
I agree, both need to take some responsibility for their actions.

Ultimately you are not responsible for your XH's relationship with his teen children. To be honest, I would keep out of it, but also support your children in making decisions of their own i.e. do not allow your XH to "come and get it off him". That is not a suitable way for him to behave, or to teach his children to accept that. Your XH is an adult and needs to behave like one, and getting angry and telling nearly adult children what they can and can't do, is not behaving like one.