Buffy
Well, to start with, you don't leave the one place where you'll be accepted for who, and what, you are.
And you talk to the only other person in the hotel who has been a vampire with a soul (which I'm guessing you have, given the conversation and lack of death taking place). Angel cares for you, and he can relate. He can at least offer a few pointers on how to deal.
All I know to tell you is that leaving isn't the answer, and I have absolute faith in the fact that you're no more of a danger to us now than you were before the pesky fangs and no sunlight deal. Now, I won't beg, because that just isn't my style, but I don't want you to leave, and I can't think of a single other person here who does.