Meaning of the word "every couple is not a pair" in English

What does "every couple is not a pair" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

every couple is not a pair

US /ˈev.ri ˈkʌp.əl ɪz nɑːt ə per/
UK /ˈev.ri ˈkʌp.əl ɪz nɒt ə peər/
"every couple is not a pair" picture

Idiom

used to say that just because two people or things are together does not mean they are suited for each other or function well as a unit

Example:
They got married quickly, but they soon realized that every couple is not a pair.
Just because they work together doesn't mean they are effective; every couple is not a pair.