In her defence even Latrice did it (used the hair on your chinny chin chin line on Willam when Jujubee had already used it against Tatianna) and her other read that was shown was alright.
I get the impression from Nina that she's really socially awkward. Untucked with Valentina in particular... the way she gets a little breathless after making a joke and constantly doubts what she's saying makes me hurt for her... She's obviously been hurt in the past and it makes me sad for her, and it's frustrating to watch her jump (sorry Eureka) Straight To Negativity because she's presumably used to it
I'm delighted she's made the top half but she has been left behind a little now. Hope she's got a high performance left in her.