Have you not been troubled with thinking that because you have done a few acts of love toward an ungrateful individual that you no longer have to love that person- Would you like God to say to you, -obey my law toward Johnny for six days, then on the seventh you may do whatever you feel like doing to Johnny-- God's love for you does not have limit. This means that your love for your neighbor has no limit. You always are obligated to treat others lawfully, hence lovingly. But never forget that love has teeth and backbone, and these are shown in the Old Testament. You are in debt to love, and you will never be out of this debt.