I met a trendy Christian girl

[Immortal Goat]

My understanding on the matter of "sinfulness" is that certain faiths have different beliefs on the subject. Some believe that no matter what you do in life, if you accept Jesus as your lord and savior by the time you die, then you go to Heaven, but if you don't, no matter how good a person you were, you go to hell. Others believe that it is mostly based on good deeds, and that while it is preferable to believe in Jesus, it isn't the only way to get there.

In other words, fundamentalist Christians are the dicks at a ticket counter that stop selling tickets before they are sold out, and the other guys are the scalpers in the parking lot. Neither one of them is someone you really want to deal with, but at least one of them is letting you in, even if it is for a high price.