If she wants to talk about R or anything else simply say, my feelings haven't changed nor have my boundaries.
I really, REALLY like that phrase.
I think a LOT of people here on this forum could benefit from TODAY cutting all of the long, drawn-up, try-to-teach-their-wayward-spouse-a-lesson justification and "R talks" by simply repeating this phrase, ending the convo, and proceeding to go out and GAL.