One more thought you should consider
Simonline, I presume you are heterosexual, in gay lingo that is ever-straight. When you minister to another ever-straight you have a common understanding of life, sexaulity, etc. The gay mindset is not the same as that of an ever-straight.
To you homosexaulity is a sin, to gay men and lesbian women their sexuality is their life. Their sexuality defines them as who their are not what they do. You see what they do as sin, gays and lesbians see what they do as who they are. Most ever-straights believe that homosexuality is a conscience choice. Gay men and lesbain women know they did not choose to have the desires and therefore believe they were created gay, they see the desires as innate, immutable, and unchangeable.
When puberty hits and your male friends are going gah-gay over girls(ugh), having erotic dreams, noticing breats, hips, etc. Gay men are noticing the rise in the levis, butts in tight pants, having erotic dreams about the high school quaterback, etc.
When you witness to a ever-straight man having an affair he may understand lust is the cause. What you don't understand about gays is what you call lust, they call love. Yes, there are gay men who are out to collect notches on their bedposts, just as there are straight men that do the same. But, when a gay man sees an attractive man he desires and goes into a relationship with, what you call sin and unnatural, he calls a a natural loving, committed relationship. Do you know why this is true for a gay man? No, because it is outside your frame of referrence and you see Lev 18:22. The gay man sees love, appreciation, affirmation, acceptance, a bonding that he NEVER RECEIVED FROM ANY ADULT MALE IN HIS LIFE.
It takes the love of Jesus Christ - a man - to fulfill his God given, normal, and natural emotional needs. Only Christ's love will set a gay man free, and telling him that his need for love is a sin and an abomination only raises barriers of self-protection and you get labeled a hate monger, a homophobic Christian, a prejudiced bigot.
2 Cor 7:9-11
9 I now rejoice, not that you were made sorrowful, but that you were made sorrowful to the point of repentance; for you were made sorrowful according to the will of God, in order that you might not suffer loss in anything through us. 10 For the sorrow that is according to the will of God produces a repentance without regret, leading to salvation; but the sorrow of the world produces death. NAS
2 Tim 2:24-26
And the Lord's bond-servant must not be quarrelsome, but be kind to all, able to teach, patient when wronged, 25 with gentleness correcting those who are in opposition, if perhaps God may grant them repentance leading to the knowledge of the truth, 26 and they may come to their senses and escape from the snare of the devil, having been held captive by him to do his will. NAS
Men come to repentance through the will of God not by an exercise of free will. The Holy Spirit convicts and converts, not you or me. BTW, it works the same with lesbians only from a different perspective, the female perspective that also needs the love of a man - Jesus Christ - to set them free.