According to the saying, "familiarity breeds contempt". This phrase is used to describe the idea that when people become too familiar with one another, they can start to take each other for granted and eventually begin to dislike each other.
Familiarity breeds contempt, according to the saying. When people become too familiar with something or someone, they start to take it for granted and find faults with it. This can lead to a lack of respect or appreciation, which breeds contempt.