Does facebook make you depressed?

i hat facebook now but for sum reason i don't wanna delete it, i have around 600fb friends, but really these people are not my friends. i get sad when i go to my friends wall and i see them having convos and talking about what they did last night or where they went, and usually followes with pictures and this made me realize how left out from every thing i was. no oe invites me to anything not even my friend that i think are my real friends im thinking of getting rid of my cell phone cu o one texts me and it makes me depressed and when i try to invite a friend over they send me a text with some lame excuse and then i see on facebook what they wereactuallyy doing. example my "friend said he was going to his grandmother's when really he went clubbing, sans moi. i feel like sh**!