Yes I've anger & rage problems. Noticing they mostly come with a manic depressed mixed episode. Like the past couple weeks. It is embarrassing & I feel horrible after. I don't usually break things, I have before - usually dishes :/ , a couple guitars :/ , my truck on a tree stump once :/ , kicked my leg through a door & got it stuck , ... A mostly empty beer can on bf's head - that was a good one ha ��, but that was more alcohol induced just thought I'd throw that example in there for comic relief. This is a very embarrassing topic for me.
It has been a big problem for me... I tend to grit my teeth so bad I'm scared I might break them & sometimes I scream - in car is best. I started doing a thing where I pound fists in air , in private , so I don't hurt anyone nor embarrass /hurt myself. I try to relax my jaw & not pull my hair. But the air fist pounding shakes my head which may not be good, but it gets some rage out.
I have talked to pdoc about it & now get the question from her that I love to impersonate, in the most quiet serious slow voice, she leans forward slowly, "Are you experiencing any (insert pause) ... road rage?" ... I told her I will only tell her the truth if she promises to not notate anything in her book that could jeopardize my drivers license... She agreed and I told her the truth, yes sometimes I have terrible road rage & consider how it would be to have a monster truck and smush the annoying freeway. Then I get scared & mad at myself for even thinking such, what about my children, other people's children, elderly who should be entitled to drive slow... But mostly I would say I am a cautious & courteous driver.
But back to you, if you don't do that often, could it be heat of the moment anger? Everyone , most everyone , has to have major anger sometimes. Please don't be too hard on yourself & I hope your fiancé was not a jerk about it.