I'm thinking about backing out of being the best man at my Dad's wedding.
Why don't you want to be your Dad's best man at his wedding?
I'm upset with him over comments he's made about my life.
Your father is depending on you to be his best man at the wedding and it's not appropriate to back out over hurt feelings. Talk with your father and come to an understanding with him about how you feel.
Okay, I'll be his best man but I won't be happy about it.
It's good that you're willing to be their for your dad, even when you're not happy with him. I'm sure you'll be able to work out your disagreements after the wedding.