Yeah, she's really messed up! At the beggining I thought she was just having some kind of crush towards Yuri, and she didn't want to admit she likes girls, so she disguised in the archetype as a detractor of yuri... but now that I'm readi this last episode, this girl is in serious need of therapy!
I don't really know who's going to be a real couple here, but I wish Yuri doesn't end up with Eunhye ( ̄へ ̄)