A marriage

嫁雞隨雞，嫁狗隨狗

jiàjīsuíjī，jiàgǒusuígǒu

If you marry a chicken follow the chicken, if you marry a dog follow the dog (idiom)

A traditional idea which is a woman should stick with the man she marries, no matter what kind of man he is. This means even if your husband is lying, cheating, abusive, alchoholic, a woman should stand by him. He is her family, even if he's a total animal.