1. '예의범절이 없네' literally means 'don't have manners'. (예의범절 = manner, rules of etiquette) 2. '공과 사 좀 구분해' means 'keep your public life and private life separate'. 공(公) = public 사(私) = private

예의범절이 없네 means 'you are really rude' and 공과 사 좀 구분해 means 'i think you should separate the official things and the personal(private) things.'