The message at Sunday School this morning was about showing grace. The preacher spoke from John 8 where the woman who was caught in the act of committing adultery was brought before him and he was asked what should be done to her. I know that you probably already know the story, but he of course said that only those without sin should stone her and none were able to follow through with the act.
All of that is to say, when you are feeling grace, you should definitely go with her and be with her. We've all fallen short and while your feelings are justified, she needs your love and support, not condemnation.
ETA: It would help if my old brain remembered where the preacher was preaching from...
