Sometimes, in life, at a certain point .. no matter how much angelic or polite you are. You will end up doing a mistake which may hurt others. Nobods was born to be perfect. Mistakes and failure appears in our daily lives. Thus, if this such thing happens and you realized that it has hurt the others or your surrounding. Quick, and make an appology.
I dont get a full picture about your story. But I can feel what you felt. I guess that guy should appologize, doesnt matter if he done it on purpose or not. I feel sorry for your condition, but im sure you will recover soon ^^