Is it illegal to show a private conversation? (uk)?

Say if you got in an argument and you hadnt sent any harassing messages but they had argued aggressively with you does that mean that it would be ille

Say if you got in an argument and you hadn't sent any harassing messages but they had argued aggressively with you does that mean that it would be illegal to show it to other parties without consent?

or:Say if you got in an argument and you hadn't sent any harassing messages but they had argued aggressively with you does that mean that it would be illegal to show it to other parties without consent?

or:I believe it is illegal to show a private conversation...

Tags:conversation,