It opens your chest and it opens your heart and it means that someone can get inside you and mess you up. You build up these defenses, you build this whole suit of armor, so that nothing can hurt you, then one stupid person, no different from any other stupid person, wanders into your stupid life. You give them a piece of you. They didn't ask for it. They do something dumb one day, like kiss you or smile at you, and then your life isn't your own any more.
Love takes hostages.
It gets inside you. It eats you out and leaves you crying in the darkness, working its way into your heart. Not just in the imagination, not just in the mind. I hate love. In no other game but love can you make all the right moves and still lose.