Good Dreams are Really Bad

I recently messaged a good friend of mine and informed her, "I had a bad dream last night." I proceeded to tell her the Cliff's Notes version of my dream, which in actuality was full of good, wonderful things. She questioned me saying, "that's a bad dream?" My retort... "Yeah, because it wasn't real." It's just such a bittersweet feeling to wake up from this short glimpse of what your subconscious reveals. How can this be classified as something good if you're so disappointed when you wake up? It isn't truth. It isn't real. It's just a plethora of random thoughts tied together; sometimes revealing something you want; sometimes revealing a garble of things that are just really weird. Good dreams are really bad.