If God is telling you to love someone don’t over think it. Don’t list reasons they don’t deserve it or list how they’ve done you wrong or worry how it might hurt again. Just love.
If you have an itch to show some love or kindness just do it. That is God. God is always love.
Every good and perfect gift comes from above. James 1:17
…The greatest of these is love 1 Corinthians 13:13
And He will use you and your good deeds, your love poured out, in ways you may never see. And it may hurt again, that is life.
But God is good and God is love, and you never know the ways someone needs you or the ways God will use you.