Who hurt you to the point where you thought it'd be a good idea to hurt others the same way? If that was your goal, well, it worked. Congratulations. You broke down a girl who has been broken many times before. You told her you were different; but you were exactly the same as the rest.
You pretended to care about her interests. Her hobbies. Her passions. You made her feel special, like you truly weren't trying to rip her heart out, and then you did it. You did it so effortlessly, and she didn't see it coming. Do you get joy in knowing you're finally not the one who cared too much?
Do you remember how it felt? Getting hurt so bad, you could barely breathe? Like every time you don't get an answer, every time you're left hanging, it's like a punch right in your stomach?
The punches kept adding up, and I'm not fighting back anymore.
You win. You knocked me out. You completely and utterly tore me down. I guess that's an important part of winning; deception.