I know nothing of the injury and hurt that split your family. It’s wonderful that you don’t feel any ill will nor does your uncle show any. That is a grace. I pray that God will guide you with His love. However you ask, what, if anything, do you owe him of Christian charity. Jesus doesn’t allow us to discrimnate between who we love or who we do not. He simply tells us to love everyone. When you face Jesus in judgement, what will you want Him to say regarding your relationship with your uncle?
“Lord, when did we see You hungry and feed You; or thirsty and give You drink? When did we see You a stranger and make You welcome; naked and clothe You; sick or in prison and go to see You?” Jesus replies “I** tell you solemnly, in so far as you did this to one of the least of these brothers of mine, you did it to me.” **“In so far as you neglected to do this to one of the least, you neglected to do it to me.” [Matthew 25:37-40, 45-46]
“Since the Father loved us so much that He sent You to be the sacrifice that takes our sins away, we too should love one another.” [John 4:10-11] “By such love, everyone will know that we are Your disciples.” “Anyone who says ‘I love God’, and hates his brother is a liar, since a person who does not love the brother that he can see, cannot love God whom he has never seen.” [1 letter of John 4:20-21]
“This I command you, that you love one another.” [John 15:17]"
Our love “is not to be mere words or mere talk, but something real and active; only by this can we be certain that we are children of the truth.” [John 3:18-19] “Do not let your love be pretence, but sincerely prefer good to evil. Love each other as brothers should, and have a profound respect for each other…If any of the saints are in need you must share with them; and you must make hospitality your special care.” [Romans 12:9-13]
“Do not judge others and you will not yourself be judged. Grant pardon and you will be pardoned. Give, and there will be gifts for you: a full measure.” [Luke 6:36-38] “Love your enemies and pray for those who persecute you; in this way you will be children of your Father in heaven, for He causes the sun to rise on bad men as well as good, and His rain to fall on honest and dishonest persons alike…You must therefore be perfect as your heavenly Father is perfect.” [Matthew 5:43-48] "But I say to you who hear, love your enemies, do good to those who hate you.” [Luke 6:27]
“Malice must be banished from your tongue.” [Psalm 34:13]