Ask God to give you love for someone you struggle to love today, someone you're really having a problem with. Now. Hold on. Love isn't just an emotion. It's good that you feel that way. After you ask God this. But act on the love that God gave you. Send a text. Do an act of kindness. Be patient. Forgive.
First Corinthians 13:4-8 tells us what real love looks like. Love is patient and kind. Love does not envy or boast. It is not arrogant or rude. It does not insist on its own way. It is not irritable or resentful. It does not rejoice at wrongdoing, but rejoices with the truth.
Love bears all things, believes all things, hopes all things, endures all things. Love never ends. This is love. Real love. Let God fill your heart with his love. 2 Thessalonians 3:5 May the Lord lead your hearts into a full understanding and expression of the love of God and the patient endurance that comes from Christ.
Express love to that person in a way that you've been struggling to love them. You'll find that love grows as we express it to others, and soon God's never fading, never failing. Love will not only fill your heart, but overflow from you to people around you. And God will be glorified.