Based on the context and the answer, generate a question. 

Context: 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 .

Answer:

He wanted to be more than just a friend from work .



What may be the reason that he was upset ?