Apparently, in the boeken Emily is bisexual. However, in the series I think she's gay. In interviews before season 3, Shay zei that at least for right then, she was not bisexual. Marlene King zei (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 toon wasn't going with that, they wouldn't have Hanna state that.
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