Your words are most kind, and most welcome.
However I am well and truly stumped. I've tried being reasonable - she takes the piss - shitty - she flares up - you name it, I've tried it...
( Monty Boyce, My cheese game is strong, Wed 20 Apr 2011, 13:53, 3 replies, latest was 15 years ago)

Just leave it for a week. Mabe even two.
Then softly, softly raise it again.

You're being reasonable highlights to her how unreasonable she likely feels which gives her nowhere to go to save face.
(Set your faces to Stunned Bigly, Wed 20 Apr 2011, 13:55, Reply)

Bitches be crazy.
Are you not aware of this?
( girlinthehole, Wed 20 Apr 2011, 13:59, Reply)

Yes.
The only thing I have come to appreciate in my 37 years is that in this sort of situation, less can definitely be more.
(Set your faces to Stunned Bigly, Wed 20 Apr 2011, 14:01, Reply)

I suspect that you may be missing something here
I don't think (from what Monty has told us) that she's even vaguely aware that she's being unreasonable.
(Reverend Fister "a disciplined fuckwit", Wed 20 Apr 2011, 14:00, Reply)

Trudat.
I think leaving it alone for a bit may help rather than hinder.
(Set your faces to Stunned Bigly, Wed 20 Apr 2011, 14:02, Reply)

Have you tried having her sectioned?
I'm only half joking.
(Reverend Fister "a disciplined fuckwit", Wed 20 Apr 2011, 13:56, Reply)

You seem to keep expecting her to be a reasonable human being. This is a mistake.

(wellgroomedwookiee is a filthy-minded hobgoblin, Wed 20 Apr 2011, 14:01, Reply)

Not his first one, though.

( thealternativefact, Wed 20 Apr 2011, 14:02, Reply)