Oh, for fuck's sake...

So today Kat mentions that her Mum was on the phone again last night...

( Imagine this in a whingeing, pathetic voice - Intended to bring about guilt in the listener. )
"Oh, that confrontation the other night. I had chest pains!"

You had WHAT?
Well, if you don't want confrontation, don't turn up and my fucking house and start shit!
You honestly think I'm going to let you give me cheek and NOT respond?
Fuck you.

I think you're lying about the chest pains anyway.
If not... Good. Maybe you're developing an inbuilt failsafe system whereby either way, Kat and I are left alone and not bothered with your shite.