Perhaps we're talking at cross purposes.

Meaning

Perhaps we're misunderstanding each other due to different interpretations.

Examples

• John: 'I thought you meant the blue file.'<br>
• Alice: 'No, the green one. Perhaps we're talking at cross purposes.'
• John: 'Oh, I was focusing on the short-term goals. Perhaps we're talking at cross purposes.'
• Alice: 'I'm referring to the long-term strategy.'<br>