it takes two to tango
idiomPart oftango
it takes two to tango — idiom
1. used to say that if something bad or difficult has happened, both people involve
1.idiom
Definition
used to say that if something bad or difficult has happened, both people involved share the blame or responsibility, or that an activity needs two people working together to succeed
Example
The manager blamed the assistant for the lost deal, but it takes two to tango — both of them failed to check the contract.
A marriage cannot survive if only one person tries to fix it; it takes two to tango.