Can I get you in on a secret I have within me? I'm going to snap at my fiancee.
Oh no, why would you try to do that to your fiance? Snapping at her, for real though?
She can be very unreasonable and I'm sick of it.
It's normal to have disagreements with your spouse, but you should do your best to resolve them in a calm manner. If you yell at your spouse, then they're going to come to fear you. Instead of yelling, waiting till you've cooled off and then try to have a calm discussion.
I don't care. I'm mad.
Anger doesn't resolve anything, calm it down a tad. Breathe and count to ten, then try to use your vocal cords in a medium tone to talk. I know you can talk because you do that a lot.