Maybe your nothing at all is never nothing at all. I mean if it's nothing at all, why would you say anything at all, in the first place.
Why is it such a necessity to you, for me to know, that you don't really care, when you just can easily ignore my existence and leave me peacefully.
Maybe, your nothing at all means a postpone for you care after all. Or maybe, your nothing at all is just a phrase to say that I do really matter to you til' you can't say anything at all. Maybe, it was the opposite, I am your everything. Everything you can't own.