I'm mad.

At someone who I thought was alot more mature than she actually was. Someone's whose morals and considerations of others...are nonexistent. How someone her age could be so immature, how she could drag down so many people. Should have left her alone, never brought her in. Too immature. That's the base of it. Can't see past herself for others. Why should I be upset at this? I should just stop caring. People like this will remain insignificant for the rest of their lives.