XH hasn't seen the DC for weeks because his DW is due to have a baby this weekend. Fine, ok, I don't agree with that... but, whatever. He is meant to have them in 2 weeks time, but will cancel if DW (OW) goes overdue. Again, whatever.
He actually refused contact 2 weeks ago because it would be helpful to me (I was going to a wedding) not because he couldn't have them. So he is still a prize twat (for those who remember me).
Anyway I'm 
today because he skyped the DC (4 and 2) and mentioned he's driving a 6 hour round trip tomorrow to get XPIL for a visit. He's meant to have the kids tomorrow - normal contact - and has flat refused to see them because it's due date. But he can get in a car and drive 3.5 hours away from his DW instead? To get the XFIL who was abusive to me after I had our DC (EA). Lucky new wife... 
Feel like screaming at the useless twunt but I know it's pointless and a waste of energy. My DC deserve better.
Help me detach and care less, please?