What is the siginificance of the scene between Eizabeth and John Proctor?

Elizabeth and John don't have a conversation in Act One.

In Act II, they discuss the fact that John knows Abigail is lying. It's an uncomfortable conversation because John has to admit to his wife that he was alone with Abigail.......... who was previously dismisses from their home because of her relationship with John (sexual).

This conversation is significant because we realize that John Proctor has made mistakes but he's not a liar. He has acted without honor, but he continues to be honorable.