As often is the case in sociology - massive assumptions are made about people by other people and EVERY post more or less in response to the OP's concern has made the following assumptions:
They all equate being Homosexual (or Gay) to "Having Sex".
If I told you I was straight as a dice and single - would you assume I was having premarital or unlawful sex according to the teachings of Scripture?
Too many people jump on the wagon immediately screaming "It the same as Adultery or premarital sex) when actually - only the actual sex act itself would constitute this reaction.
A homosexual may never have sex, but that doesn't stop their "**Sexual Preference". **The phrase sexual preference here has nothing to do with actual sex as above mentioned. It merely describes the individuals preference of the gender of the people they emotionally relate to.
Just because somebody says they are Gay - don't assume their are in an active sexual relationship. There is a big difference between an active relationship, and a relationship which features sex as a device.
Secondly, whats the phrase "Gay Lifestyle" mean? We have all heard it right?
It is the euphemism for Gay Sex and is used to define gay relationships from start to end taking into account the above detailed common assumption.
Essentially, don't assume just because a man or woman would prefer to emotionally bond with somebody of the same sex, that they are immediately as guilty in sin as an Adulterer.
Nowhere is it said that I somebody go for a meal with a great friend to whom they are emotionally bonded, hold his hand on the way home and give him a kiss goodnight. But what it is documented is the following 12 popular scripture passages relating to this post......watch out for the theme now.
1. Genesis 19:5: "And they called unto Lot, and said unto him, where are the men which came in to thee this night? Bring them out unto us, that we may know them."
2. Leviticus 18:22: " Thou shalt not lie with mankind, as with womankind: it is abomination."
3. Leviticus 20:13: "If a man also lie with mankind, as he lieth with a woman, both of them have committed an abomination: they shall surely be put to death; their blood shall be upon them."
4. Deuteronomy 23:17: " There shall be no whore of the daughters of Israel, nor a sodomite of the sons of Israel."
5. Judges 19:22: "Now as they were making their hearts merry, behold, the men of the city, certain sons of Belial, beset the house round about, and beat at the door, and spake to the master of the house, the old man, saying, Bring forth the man that came into thine house, that we may know him."
6. 1 Kings 14:24: "And there were also sodomites in the land: and they did according to all the abominations of the nations which the LORD cast out before the children of Israel."
7. 1 Kings 15:12: "And he took away the sodomites out of the land, and removed all the idols that his fathers had made."
8. 1 Kings 22:46: "And the remnant of the sodomites, which remained in the days of his father Asa, he took out of the land."
9. 2 Kings 23:7: "And he brake down the houses of the sodomites, that were by the house of the LORD, where the women wove hangings for the grove."
10. Romans 1:26-27: "For this cause God gave them up unto vile affections: for even their women did change the natural use into that which is against nature: 27 And likewise also the men, leaving the natural use of the woman, burned in their lust one toward another; men with men working that which is unseemly, and receiving in themselves that recompence of their error which was meet."
11. 1 Corinthian 6:9: "Know ye not that the unrighteous shall not inherit the kingdom of God? Be not deceived: neither fornicators, nor idolaters, nor adulterers, nor effeminate, nor abusers of themselves with mankind."
12. 1 Timothy 1:9:10: "Knowing this, that the law is not made for a righteous man, but for the lawless and disobedient, for the ungodly and for sinners, for unholy and profane, for murderers of fathers and murderers of mothers, for manslayers, 10 For whoremongers, for them that defile themselves with mankind, for menstealers, for liars, for perjured persons, and if there be any other thing that is contrary to sound doctrine;"
All of these relate directly to sexual relationships and not 1 mentions anything about a purely emotional relationship. Where does it say...."And You Shall Not Kiss a Man"? or "Damned Are The Same Sex Hand Holders"?
Essentially - stop making assumptions - pray with and for your family member that they may find happiness and comfort within the parameters of Gods Word.
This family member doesn't need healing, they need your prayers and support, they need your Witness that they may find a relationship with Jesus, deepened by The Spirit. Then they will begin to see that everything they do, serves and praises God.
They may at this point re-assess.