When I was in high school, my girlfriend now wife thought that I was crazy...
Like a week after we start going out my friends and I got into a dirt clod fight, one of my "friends" threw a chunk of cement it hit me in the face and broke my sunglasses. I was so blinded with rage about the broken glasses that I didn't even notice all of the blood leaking down my face or the shrapnel stuck in my forehead.
I'm not saying that the stitches helped our chances of staying together but after that our relationship grew more serious.