fear of commitment?

well i asked her if she thought of me as a boyfriend and she told me no and i told her i thought she was.she said 'i'm not seeing anyone else isnt that the basic concept' and that calling me bf was too much pressure and that she wanted to take it slow so she didnt hate me in a month.i told her i understood and wasnt gonna push her into a commitment.but then when i talked to her later she seemed down and said she didnt want to talk about why she was feeling that way said she had alot on her mind and was