I'm not going to my brother's wedding
Why would you miss something so important?
He didn't stand up to my parents earlier when they asked me to do some unwanted stuff for him.
I'm sorry you had a falling out with your brother during a special time, but you should still put aside your differences right now to celebrate one day of joy. You will regret not going because of one small problem.
I hate family. F*ck that wedding day.
I get that you are upset about it but you should still make some kind of effort to attend the wedding. It is rude to miss the special day of your family member.