Ibnul-Jawzee, رحمه الله تعالى, said: 

“When your companion becomes angry and says something that is unwarranted, you should not take it too hard. His situation is that of a drunken person who is not aware of what is taking place. Instead, be patient, even if it means only for a little while. If you reciprocate his words with harsh words of your own, you become like the sane person who seeks revenge on a madman, or the conscious person who seeks retribution from an unconscious one. Look at him with a merciful eye and pity him for his actions.”

[Sayd al-Khaatir, Pg. 406]