I would gain nothing unless I loved others. Love is kind and patient, never jealous, boastful, proud or rude. Love isn't selfish or quick-tempered. It doesn't keep a record of wrongs that others do. Love rejoices in the truth, but not in evil.
Love is always supportive, loyal, hopeful and trusting.
As Christians we know we are to love God, and also, that we should love one another. But there are times when we seem unable to do this. God loves each of us without fail, endlessly, faithfully, even to the end of the age. We just need to be more open to receiving His love and when we do, loving Him comes naturally. When we allow ourselves to feel this wondrous love it is easier for all of us to give it to others.