<human>: As in any relationship there are occasional raised voices over some dispute. She has a tendency to treat me like an idiot and nag in a shouty way; to be fair I often have done something idiotic, but I can't take this shouting, and the criticism is becoming a bit too frequent. 

But the real problem here is my reaction to all this: when she shouts at me, I just think: 'no, that's it, I can't live like this, I'm going to divorce.' 

So the question is: how can I have a less extreme all-or-nothing reaction to normal relationship bumps? What do I do?  And don't suggest therapy, because she views the whole psych-* profession as  useless charletans.

HELP!  And please answer fast: if she finds out I've posted this, I am toast, so (a) throwaway, and (b) I'll delete it soon.

Can you condense the text into a few key points?
<bot>: How to have a less dramatic  emotional response to wife stressing me than thinking "I can't live like this, I want a divorce".