The Chazon Ish wrote: A person who has reached a proper level of love for others will not feel hurt or anger by what they say to him. Love has the ability to cancel all wrongdoings. Although he personally will be meticulously careful to show respect to everyone, he realizes that the majority of people have not perfected their character traits, and so he does not have excessive expectations about others. Such an elevated person will not have to constrain himself to not feel anger or the pain of embarrassment, for he is in a constant state of happiness.
Though the level the Chazon Ish describes takes much working on oneself to achieve, it is humanly possible to obtain, and we should strive to travel in that direction.
About this and similar ideals, I often quote my teacher, Rabbi Gavriel Ginsberg, who said, "When you reach for the stars, you might not catch any. But at least you won't get your hands in the mud."
(Chazon Ish - Emunah Ubitochon 1:11,15; Rabbi Pliskin's Gateway to Happiness, p.205)