After doing the Myrelis section I tried talking to Elana after I had 11 affection and it skips me back to when I was at 10 affection and see the NSFW content warning. I know that it skips me back because I lose access to the Dream Library and am back at -1 affection for Saori, but I also lose access to Elana's character card and Yuno and Amaranth have the affection max of after Myrelis.