I used to believe as you do, sunphoenix.
(Then I took an arrow to the knee)
Erm, I mean, then I went to several different churches.
One, a fundamentalist, talked about how the law of the Hebrews was actually impossible to follow, which is why we are saved by grace.
After walking out of said church (something to do with a "family" sermon where he condemned LGBT people) I went to a more down-to-earth easygoing church. I learned that it was okay who I was.
All of this while I was reading a book known as the Virtue of Imperfection.
We have this mentality that sin is wrongdoing, but what I learned was that sin is actually better described by Final Fantasy X. They kept trying to banish Sin (both kinds) through sacrifice, but it kept coming back. It was only by rejecting this mentality that we got at the true source of sin, guilt. Letting go of guilt is the only way to truly kill off sin. That and a massive Aeon.
http://ontologicalgeek.com/change-or-live-final-fantasy-x-as-catholic-dystopia/What this passage was trying to put was not that "you people may think you're okay but I have a new law and you're way worse off than you think (yay! Good News!)" but more like...
https://www.youtube.com/watch?v=E9c8bYuxLEg"Until I learned to love myself
I was never ever lovin' anybody else"
The problem of adultery is not in itself, but that it produces emotions that make you feel cut off from the loved one. Self-hatred. This in turn make you act out in ways that distance you from other people. Even thinking about someone else produces these feelings. Not the idea of being damned to hell cuz you looked at a cute girl while in a relationship.
Bern needs to lighten up. May does know what she's going through and feels way worse about her own infidelity. But yea, it is how she feels. Tough to let go that feeling of worthlessness.