Sounds like someone needs to take a first step toward healing in this family, and it seems that you did that by asking for prayer. Please see the section on this site “Prayer for Broken Relationships,” and share it with anyone else in the family that agrees with you regarding your request. See also I John 4:7-8 “Beloved , let us love one another: for love is of God: and everyone that loveth is born of God, and knoweth God. (8) He that loveth not knoweth not God: for God is love.” Pray these verses to stay encouraged in your spirit. My prayer for you is that the Lord will pour His grace into the situation and infuse your family with supernatural healing, including for the 80-year-old relative. Consider applying a house cleansing prayer where your elderly relative lives, too. In the mighty name of Jesus Christ,
I pronounce His peace and love upon your family, and believe in a breakthrough in this situation. Praise and thank Him for what He will do. I pray that you will be blessed for caring enough to bring this matter before the Lord. “Let us therefore come boldly to the throne of grace, that we may obtain mercy, and find grace in time of need.” Hebrews 4:16