The depth of your character is not easily seen from the outside. Someone has to get to know you pretty well before understanding your complexity and unfathomable reaches. And the truth is that you don't let too many people in that far.
You are profoundly emotional but rarely express your feelings in their totality. You say you're afraid you'll blow them out of the water, but the honest reality is that you refuse to make yourself that vulnerable by speaking your truest, deepest emotions. It's your policy never to reveal everything, anyway. Your focus is legendary and your willpower extreme. Investigation, research, and history are areas that hold appeal for you, as well as psychology, where you can use your intuitive understanding of human motivation. The dark, hidden side of things is the part that appeals to you; you will relentlessly dig till you find what you're looking for. That intense focus can easily develop into obsession. The arena of relationships can be quite a minefield. Each one is highly charged with your passion, intensity, suspicion, and desire to control. In your heart of hearts you want a close intimate relationship with an equal, but you may have experienced such pain in the past that you've decided it's easier to be alone. Don't make it permanent, though, if you're in that mindset; one of Scorpio's greatest strengths is the ability to recover and recoup from loss.