Hypocrisy At Its Finest

This instance that I have experienced (and continue to experience) is less of a situation that directly involved me, but is more of something that I observe a friend do. There is a friend of mine whom I have attended church with on a regular basis since 5th grade; when I moved to Cartersville. Without fail, every Sunday, he was at the service. Even more than that he is an active member in the church's youth program and always takes the annual mission trip in the summer. During the fall semester of our junior year of high school (so about 4 years ago now) he took an astrology class, which completely altered his religious beliefs to the extreme that a once devout Christian is now an Athiest. The hypocrisy occurs in the fact that he still regularly attends church, and youth group, sings the songs, prays the prayers, and thinks all of it is a giant crock. He lies to the congregation on a weekly basis in doing this, and comits hypocrisy in its most basic form. After talking to him about this he has made it clear that he likes the people, and church is the only time he gets to see his "friends" so he will continue the facade until it no longer pleases him to do so. But plainly; he is a liar, and he is pretending to be someone he is not for personal gain. Hypocrisy.