A surprise happens all of a sudden, it's momentary. So is a disappointment. A disappointment may not seem to happen that quickly. But it actually is. The first moment when you realize your dream is broken, that is the actual moment of disappointment, the rest of the process in being disappointed is just full of after effects.
A surprise catches you unprepared, off-guard. So is a disappointment. Even if you have preparations and alternative scenarios on your mind, when you realize the actual moment of being disappointed you are generally defenseless and vulnerable.
Combining these characteristics of a surprise and adding a touch of "bad" on top, here is your disappointment...
