Idioms and expressions are important parts of any literary or dialectical culture. For those who ask what the idioms are, they are groups of words that present information in a figurative or proverbial way. Today there are modern acronyms in casual use. There are many other idioms and expressions on friendship and relationships that have centuries and still have an important place in modern culture.
Here are some examples of idioms about relationships.

Are these idioms really useful? Share some idioms that you know.