Someone finds fault at work.

Ha ha. I don't think you are the only one in this situation. Maybe many people have similar experiences, because there are always some individuals with bad mentality. Seeing that others have a good relationship with colleagues, good popularity and good mood, his heart will be unbalanced. There will be a kind of emptiness and jealousy. So he (she) will not be controlled by his own behavior to speak ill of those people. To tell the truth, such people are actually very tired. Very painful. Maybe he (she) hates himself, but he (she) can't control what he (she) does. His or her heart is humble, timid, scared, lonely, painful, contradictory, struggling and unhappy. So try to forgive these people. If you think so, let's try to get into their hearts. Because they actually need love and care more than we do.