Crimson Bite by Ivana Skye

Unlike most art students at Southern College, Sara Obsidian doesn’t want to be a vampire. No, not even if they have recruiting booths on campus. She’s fine being human, thank you very much.
But she might change her mind when a dorky vampire with a mild action movie obsession suddenly sits next to her at a movie theater. To make matters even weirder, he asks if she’ll pretend to be his girlfriend, to hide the fact that he’s actually dating a vampire from another faction—which is a big no-no.
There’s no way she’s going to fall for him, or anything. And there’s even less way that she’ll fall for his boyfriend.
Sara Obsidian is a perfectly normal human.