When they do well, they feel happy. When others do not appreciate them, they can still feel loved. When they do poorly, they can still feel happy. Love yourself, but don t kid yourself about how much you are loving. Mature Christians know judgment is a matter of life or death.
Judgment is different from love.
You cannot love and judge someone. If you feel anger toward them, it is you who are creating the anger, not them. Anger, unforgiveness and judgment separate us from God and from our real life. Detachment is thought from the head and attachment is feeling from the heart. Take it to heart.