Perhaps she thought she was the only one struggling with this, but I've been asked this question hundreds of times. You see, I was once an atheist who set out to prove Christianity was untrue. But during my investigation, I discovered overwhelming evidence that demonstrates the validity of Christianity. And because of a dedicated Christian who was prepared to answer my questions, my heart was reached.
Christians are hypocrites.
A hypocrite is an actor, a person who pretends to be something he isn't. Jesus' harshest words were reserved for hypocrites. The reality is, there always have been and always will be some hypocrites in the Church. Although Christians can represent Jesus either poorly or well, the real question isn't whether there are hypocrites in the Church, but whether Jesus is a hypocrite. If someone can prove that Jesus was a hypocrite, then the whole structure of Christianity falls into ruin.