I often forget this verse nestled in the middle of the chapter on love. It directly follows the unforgettable verses 4-6: "Love is patient, love is kind. It does not envy, it does not boast, it is not proud. It is not rude, it is not self-seeking, it is not easily angered, it keeps no record of wrongs. Love does not delight in evil but rejoices with the truth."
Love is not a feeling we have no control over, rather, it is an active choice to obey and model Christ in relationship. Christ didn't change his mind when those he loved the most betrayed him. Love requires that I always protect, trust, hope, and persevere, regardless of the outcome.
The love of Christ is never wasted.