I can understand how that would feel. You could always get her a new poem to display, see what happens

Tell her you miss seeing something of yours that you left behind with her...
The fingernail issue is kind of annoying, particularly since she seemed to notice your discomfort about it earlier. I think sometimes it is easy to fidget a bit like that in an absent minded way, even when you are listening closely. Though I do understand that it was like she wasn't completely there with you.
They are the types of things that feel like they should be molehills and not mountains (at least I feel that way encountering things in my own therapy)...but often being brave and bringing them up and talking about them really helps the therapy relationship. I think it's helped me a lot to bring up all those things that did actually make me feel sad, undervalued and forgotten.