There is this person at my school that makes me feel like a back up friend. This person only talks to me when no one else is around and if they see someone else they like better, I don't exist to them. I know the difference between an acquaintance and a friend who is fake and trying to use me. This person does nothing but complain about her boyfriend, the people she lives with, and only talks about herself. She also tries to ask for money a lot and does not ask about how I'm doing or anyone else is doing. She even admitted to me that she only talks to me out of boredom. Several people at my school are like this and I've decided to avoid these kinds of people. When I refuse to be their back up company while they are alone, they get really mad, don't know what makes the do this and what I might be doing to cause them to act this way towards me.