Learning to not relive past arguments and keep rehashing them was on of the better things I took home from Retrouvaille. It's best when you can say something once and not have to mention it again. That happens when the other person cares about your feelings. You had the discussion about FB a while back, and she didn't care enough about your feelings to follow through. Now you have had the conversation again. She did what she said she would. Now you watch to see if she cares enough to stick to it.