It's all right, you didn't know, I got carried away. No harm, no foul.
If none of the people from my world were here, I could probably get away with the pretending bit, but even when I first arrived here, there were too many of them here to say otherwise for any show I put on to be all that convincing.
She's been successful before, I suppose she will be again, if nothing else changes. Basically, she's forcing him to find his humanity...and suppress what is actually part of what he is now. Being a vampire, it changes you, almost every part of who you were before and she's forcing him to be something else.