Apparently, in the libri Emily is bisexual. However, in the series I think she's gay. In interviews before season 3, Shay detto that at least for right then, she was not bisexual. Marlene King detto (right before Nate came on the scene) that Emily was going through a confusing time and may do things that will "take her on a winding road" but that she does come back to her sexuality in the end. Also, I recall Hanna saying to Nate that she was gay and I feel like if the mostra wasn't going with that, they wouldn't have Hanna state that.
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