When a woman says 'my friend'?

So I thought this woman was into me. She was not at work today as she had gone for an interview. Later on i saw her come on msn. I asked her how it went to which said well and that she was drained. She then said she would be back in the office next week. I said sorry I thought you were working from home. She said it's ok my friend. We chatted a bit more then she said she had to go and that she would see me next week my friend. Is this her stating that we are just colleagues and calling me friend to tell me that, that is all I am?
When a woman says 'my friend'?
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