Am i a faulty or him?

i have a friend whom i met through my cousin when i was a kid. he is poor and i am a middle class. he is the very emotional type and me the one who runs away from emotions completely though lately i have been trying to develop it and am completely lost. both of us have been through depression. he showed it constantly but i never showed it. he was neglected and i was accepted and admired. he was always scolded by others. all my cousins and friends ridiculed him. but i was there for him as a friend. i had friends who accepted me but i had social phobia. and i admit that i might have been hanging around with him because of that. even though he is poor, i never tried to show that. i went to his home as if i was from a same class. thats my nature. people misunderstand me about that since i am an introvert. but he showed me lots of time about his poverty. he even told one of my friends about a senseless incident about my mom, that my mom meant something about his poverty. actually she didnt mean a bit about it. i never liked him since then. he also never listens to me and uses my stuffs even though i am upset. he even does this to others. i felt he always showed me differences about my being in a well off family when actually i never meant anything like that. i admit that i never liked his emotional attitude. and i guess he was surprised by my unemotional attitude though i am friendly, friendly to a point that i get used. he always has been saying that i am his best friend, a childhood friend but i think he is using me and my family's middle class richness. i dont trust him. but he has blamed me so much that i am the one who is feeling guilty. i too had lots of things to blame about him but always held it within myself. i used be one of the top talented guys. he liked me. but due to addiction social phobia depression, i am now in a lost situation. and now i overheard him saying i am weird to his girlfriend when i went to him for help from a psychological problem. i even tried to trust him and told him about my psychological problems, the first time i trusted a person about it. and i get the response from him.........no help, instead comparing me to his depression and a cynical, indifferent, attitude face though he knows himself that even if i am unemotional i alwyas try to help him. i even tried to help him with depression though i myself was suffering from it. i admit i might be faulty. or he might be faulty. or both of us could be faulty. but i dont think we could be friends. and its hard to break it up since we have been friends for too long. Is it normal to have a friend like this?
should i leave him? or should i stick for some more time? any other comments? thank you