Ex friend problem.?

i was best friends with this girl for abouta year. i would do everything in my power 2 make her happy. she has depression problems along w/ anxiety. we hung otu every day for about a year. then she started making othe friends when she came back to public school from tht year of being home schooled. she would get mad at me if i smoked a cigg without her, but yet she would do 4 or 5 everyday and not tell me, but still get mad at me if i did one w/out her, or even thought of it. she was a really BIG hypocrit. . she would want to go smoke weed or drink then drive around (bad speeder) with 4 other friends in the car. i would try tto tel her..umMm no, or ATLEAST ddont do alot. but she would get mad at me. for about a week she told me that im the reason she wants to kill herself because of what i did.i got shingles because of that stress. so i got fed up and told her i dont want to be friends. she made alot of people hate me, because im a "controling person".all i ever did was try 2 help her!