Because that’s what the other person asked. “Secluded myself” isn’t really an answer. I can seclude myself counting leaves in the forest, lay down and stare at the ceiling, walk circles around my room and try to make them perfectly circular…

It’s not that you have to tell; saying “I don’t know” or “I’d rather not say” would be an answer too. But you made a snide remark regarding the other person’s reading comprehension (why?) and fail to properly comprehend their question (or mine).