This post is not about anyone on PC or anyone that has ever been on PC! thanks!

Hi everyone,
I am very angered,frustrated and hurt about something right now, so I wanted to post about it so I could get some advice.
Recently one my friends has thought I was angry with her... There are lots of times Im annoyed with her because she acts so careless about our friendship. But she constantly asks whats wrong, and I tell her that I'm just upset or down at the time because of my depression, but I often hear that she thinks I am angry with her. No matter how much I would tell her, she still thinks I am mad at her, and she wants me to talk to her about whatever is bothering me...although, everytime I do, I hear later that she's pretty much sick of hearing about it! so this is the reason I dont talk about it. Well, now I AM ANGRY with her! She has been saying stuff behind my back, and the other day said something really hurtful to an old friend of mine about me, luckily my other friend was kind enough to call me and fill me in. I know she's telling the truth, because this isnt the first, second or even third time i've been warned that she's saying stuff about me!! I am so sick of this! She is making fun of my depression and says all I do is mope! she gets so rude about it.She hates the fact that Im still depressed and she keeps saying that I should get over my problem because it doesnt take her that long. She pretty much says its ridiculus. Well the way I see it, not everyone is the same. she should respect my feelings and try to help me work this out, instead of insulting me. I cant help it, and she's just making it worse, because I feel as though I'm pathetic when I hear these things. I feel as though I am alone. She is "supposed" to be my best friend! we've known each other for a looong time. Should I dump her?? i think I should! I'm ready to kick her to the curb!! I am so upset, that she would say this stuff about me and then always expects me to be there for her when she needs someone! and then she just acts like she loves me to death to my face. OMG! can someone give me some advice on this subject?