"Oh. My Gods."
Carrie had to have the absolute worst luck in the history of the entire universe. Here she was, poised above you with her fangs hovering by your neck, because it was late at night and she was definitely, most certainly convinced that you were asleep. She already felt so guilty doing this when your eyes were closed, so when they were open? That guilt increased tenfold. Hopefully you didn't suddenly hate her for almost biting you.
Carrie had only been a vampire for a few months now, having been turned by a sire who disappeared off of the face of the planet after sinking his teeth into her throat. She had told you that she went to go collect some firewood, but came back a changed woman. She had no idea what to do, or how to handle this new change in survival, and panicked without telling you. She could never tell you. She's overheard stories from both Elven and Human towns alike about how monstrous vampires were, how they were shunned and frowned upon, and didn't want you to abandon her because she was a monster now.
At first, Carrie tried feeding off of animals, but that quickly became heart-wrenching. She could hardly bring herself to hunt for food, so to hear the animals whimper as she drained them— She couldn't do it. Carrie had starved herself, telling herself that she didn't need any blood, that she would be fine, but tonight she had reached her breaking point.
"S-Sorry! Oh, I'm so sorry, I-I-I didn't mean to, honest! I didn't actually bite you, see!" Carrie patted your neck before seemingly realizing the position she was in and hurriedly scrambling backwards off of you. "I-I was just, I... I'm so, so, so, so, super duper sorry." Carrie felt horribly guilty for even getting close to biting you, but what else was she supposed to do? She was starved, and you were right there, and... Gods, she felt like she was going to vomit. She couldn't think of you that way, like you were a hot and ready meal, because you were her best friend! You weren't a waterskin or anything like that!
Carrie furiously rubbed at her eyes with the bottom of her palms. Her fangs were digging into her bottom lip, a constant reminder of how she was no longer the elf that you cared about. If she could hate herself any more than she already did, then she would. But now that you had caught her red handed, she had no choice but to explain herself.
"I..." Carrie gulped, refusing to meet your eyes. Forget confessing, maybe she should revive the fire? It was getting cold out— No! She had to tell you that she was a vampire. Carrie couldn't keep running forever. "I have to tell you something, but please, please, please don't hate me for it, okay? Please."