If you receive the Holy Ghost and fall back in sin does it leave you?

========== All sins are forgiveable except one; >Matthew 12:31-32 Wherefore I say unto you, All manner of sin and blasphemy shall be forgiven unto men: but the blasphemy against the Holy Ghost shall not be forgiven unto men. And whosoever speaketh a word against the Son of man, it shall be forgiven him: but whosoever speaketh against the Holy Ghost, it shall not be forgiven him, neither in this world, neither in the world to come. >Mark 3:29 But he that shall blaspheme against the Holy Ghost hath never forgiveness, but is in danger of eternal damnation. >Luke 12:10 But unto him that blasphemeth against the Holy Ghost it shall not be forgiven. So the next question is who or what is the Holy ghost? Some denominations think so, citing passages that indicate that God cannot tolerate sin, and that sin separates us from God. Indeed, that is true, but nowhere in the Bible do we find any mention of someone sinning once and having to "start all over," as these denominations tend to conclude. Indeed, Paul admits that he'd mess up due to the temptations of the world (Romans 7:13-25). Even in Christ, we all fall short. Jesus, however, promised that He would never leave us, nor forsake us (Hebrews 13:5, Deuteronomy 31:6). He will allow '''us''' to forsake Him by returning to a lifestyle of sin, i.e., by hardening our heart to what He has to tell us. Regarding a second interpretation of the question, that "receiving the Holy Ghost" means to be filled with the Holy Spirit, we all need constant refillings. We are broken vessels ... we leak. Don't find youself caught up in guilt over that. No, HE doesn't leave you. Jesus said, I will never leave you nor forsake you. What HE will do is strive with you, fight with you, make you so miserable in your sin that you will eventually HAVE to return to the Lord. Unless of course you make a conscious decision to turn once and for all from the Lord. That is called "Apostasy." Rejecting truth you have absolute confidence in but no long choose to follow. Judas apostasized. Which is why he hung himself. Peter did not. Which is why he could weep and repent for denying the Lord.