He's just emailed to tell me about the conversation he had with the DC after school.
I am so fucking angry I could spit 


He spoke to them. Ds said he was angry and sad. He asked if it was because daddy having this friend meant mummy and daddy wouldn't get back together and he said yes.
Yada yada yada.
Then.... and I quote....
I asked them how they felt about it. I got a bit upset telling them and Ds reacted to that by cuddling me and crying too. He said he was sad and a bit angry.
I am literally shaking with rage. That fucking bastard!!!!!
My poor poor boy. On his fucking birthday!!!!!! I swear I'm going to kill him with my bare fucking hands!!!!!!