We were at a costume party and two guys were gawking and taking photos of my gf. In the spirit of the holiday, my gf offered to take a picture with them. While I was taking pictures for them I heard a surprised yelp from my gf. Afterwards she told me one of them reached under her skirt and placed his hand on her butt. I was pissed and wanted to confront the guys but my gf didn't want to cause a scene and she acted it wasn't a big deal. And for my own part I didn't want to start a fight that I wasn't sure I could win.
Now the more I thought about it, the weaker and angrier I felt. I seem to always let the rational side of me control me. I should have just went after them regardless of what the consequences were. Even though my gf was extremely supportive and didn't really want me to start anything, I still feel like I let her down.
I feel depressed and weak and helpless....
If anyone has any suggestions on how to cope with this, I would greatly appreciate it.