Love is not only expressed by words of affirmation and appreciation, it can also come in the form of a rebuke. Love is a double-sided coin.
Love is looking in your spouse’s eyes and saying, “You mean the world to me. I wouldn’t want to go on without you.” But, love could also be a protective warning. When a friend is about to engage in adultery, the loving thing to do would be to say, “STOP! Don’t do it!”— even if it means losing your friendship over it.
Micah Fries and Robby Gallaty, Exalting Jesus in Zephaniah, Haggai, and Malachi Commentary: