【不要和同事吵架。不要和外部同事吵架。】 【If you think she disturb you, or you don't want to be too nice or too close to her, you just keep distance and be polite. If you are busy, tell her you are busy. Ask her to do things herself. Don't do everything for her, just like a sister to a babay.】
【Like today, you cannot politly say no, and you shouted to her, that' s horrible. Stop arguing and shouting. Be polite and keep distance to all your colleagues.】