What will you do if ur friend is angry with you?

I have a friend whom I know for 3 months already. She's quiet so I always share everything wd her, all the feelings and everything. After I share, I always ask her that if she has any problem wd me or in her life, she can tell me. But she never did.Today, I told her that we'll meet after class and she wasn't there. I called her so many times and she didnt picked the phone. Afterwrds, she shouted that doesn't she have the right to live her life. She was arguing that I am a bad friend and that I dont understand her but I've always had asked her if she had a problem. She even closed the phone afterwards and I texted her and she told me that she hates me and i must not dare to come near her and talk about the problem. SHe also told me that I love to say bad things about people but my intention was to share it with her. She said that I always stick in the past and everything so. She said she's not my friend but acquaintance only. What must I do? How must I react?