Sometimes it's not so much what we say, as how
we say it......and a smart man will learn the nuances.
My husband is just such a man. He has discovered, through much trial, error, and nights spent on the sofa, that the single word "FINE" can mean several different things.......it all depends on the tone:
means I don't care enough about the subject under discussion to continue it.
with an 'up' note means it really IS fine with me, and in fact I'd love to do whatever it is you have proposed.
, clipped short, means "Keep talking at your own risk".
"FINE!!" :angryfire means, of course, that at that particular moment, everything sucks, and I will cheerfully kill you if given the slightest provocation.