I understand, but in an attempt to distinguish existence you fall back on reality. It'll always be the place to fall back, because it's where we rest. I'm going to pursue more semantics.
Consider that earlier you said, and we all do, that Darth Vadar only exists as a character in a book. What is so "only" about that existence?--It's an existence, but it's inferior. It's "only" a character, not real.
So what does reality add to existence in your words, in your sentence, in your way of thinking and in your world picture?