不是一家人不进一家门
bù​shì​yī​jiā​rén​bù​jìn​yī​jiā​mén

people who share common traits end up together

不是一家人不进一家门 不是一家人不進一家門 bù​shì​yī​jiā​rén​bù​jìn​yī​jiā​mén
people who share common traits end up together
people do not become a family unless they share similar temperaments or values; often used to describe how married couples or family members are alike in character or predestined to be together