@AlteredState...
Do you mean to say you don't believe I'm 15? XD Like you said, your theory can't be easily disproved. It's up to you if you accept my statement, but I'm not lying about my age. I'll be 16 in March, if that clarifies anything...?
I'm curious... What makes you suspicious?

@Greg
Thanks, first of all, for the advice. I must say when it comes to religion, I can be reluctant to discuss that. I don't belong to an organized faith. And while I'm confident in my philosophical views, they are easily criticized by people such as my friend who offer nothing but degradation. It's my belief that religion is personal, and I don't think it'd necessary to declare my views to the world.

I'm aware of my selfishness when it comes to friendships, but I think it's justified. I've never been a people person, and friends were always a luxury for me. I internalize others very well, to the point where if a real friendship is taxing, I don't find it necessary for me to remain in that relationship. I have a few friends who need me far more than I need them. It's a dangerous place to be, but I don't mind helping people. This friend of mine seems to take this relationship for granted... She insults me, making me feel like she doesn't value the friendship at all. So at the end of the day, I was like, "Fine, then. I'm not sticking around for this."

Maybe someone here thinks those are screwy opinions, but it makes sense to me.

But yeah, so long as she's willing to grow and change, then I'll be happy to help her along the way.