Kitsune girl...I can very much relate to what you went through with this person...I have had my fair share of such people in life as well...I too had a couple of older girl friends whom I allowed to treat me like a doormat...I made the big mistake of trusting them too quickly and I let them use me for their own interests...I was always begging them for attention pouring out all my secrets to them making myself think they are the only ones who can save me from loneliness...And in the end I realized I was making all the effort for nothing...by approaching them so much all the time and realizing that they were never showing even the slightest interest in me by freezing me out and 'pretend listening' to all my problems I finally decided to save my dignity and slammed the door in their faces...Since then I have totally locked myself up and I never even try to make conversation with anyone cos in my mind there is this powerful fortified wall that tells me I need to lock up all that is in my head and only treat people for my own selfish interests...afterall if people are all selfish then why the hell should I act different....