It all depends. If he already knew Christ since young (I believe he is), but to fall away with the knowledge of Christ & sin, then according to Heb 6:4-6, then there is no more remission? since it is considered "sinning willfully & knowingly after knowing Christ"?
Heb 6:6, "4 For it is impossible for those who were once enlightened, and have tasted the heavenly gift, and have become partakers of the Holy Spirit, 5 and have tasted the good word of God and the powers of the age to come, 6 if they fall away, to renew them again to repentance, since they crucify again for themselves the Son of God, and put Him to an open shame.If they shall fall away, to renew them again unto repentance; seeing they crucify to themselves the Son of God afresh, and put him to an open shame."
I'm just voicing my opinion, I'm neither in Folau nor Homoxesual side.
