Yes, let it go!
Letting go isn’t always easy but in the long run it doesn’t do you any good to hang on to things that have offended, insulted or disappointed you. What good is it doing you to hold on to them?
There are so many people that haven’t spoken to their family members or friends for years because of some silly thing and half the time they don’t even remember what it was about but their ego gets in the way of their letting go.
Are you holding on to something?