Friends don't have to be perfect, you're absolutely right.
Sometimes silence says more than the bustle of words, a good friend knows that.
When we have a true friend, their victories are ours and their defeats also hurt us.
A true friend tells you the truth, even if it hurts us, we know it is true and we accept it as such.
Having a friend is having a treasure, because not many people have managed to have a friend, who is sometimes better than a brother.
I am glad that you have achieved a friendship, if it is sincere it will last as long as you live.