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but at this party i guess i made the mistake of calling him my ' best work friend ' . he was offended . little did i know ... that was just the beginning.it was only until about march , my birthday month , where we did nearly everything together . he quit his job and went off to his first career and a digital imaging artist .

Question:
What may be the reason that he was upset ?
Pick from: *He had feelings for them .; *He wanted to be more than just a friend from work .; *None of the above choices .; *He wanted to be more than friends .;