What I said isn’t what you heard. You heard from your perspective and disagreed.
We all have different perspectives, and many times what is told and what is heard are different. This can lead to confusion if you don’t get a chance to clear the air.
If ever such confusion arises, make sure you sort it out with open communication and clear the context of what you said.
To disagree and getting confused is natural, and to solve it, the only way is open communication because open communication can help you clear the context behind what you said.