The point is that you also are far from perfect, so it's better for both of you to find ways to be kind to each other despite one another's flaws. Kind doesn't

The point is that you also are far from perfect, so it's better for both of you to find ways to be kind to each other despite one another's flaws. Kind doesn't mean pretending to like everything - it just means not creating a new problem by thinking that meanness is justified.