Ran out of options...
He would liked to be able to say say that he has never wanted to hurt anyone. That all his actions have been true and altruistic. But that wouldn't be quite truthful. In fact, it would be very far from the truth. When his heart shattered, he wanted to hurt everyone, to make them feel what he felt, or even just not to be alone in it. In the wake of his loss, he longed to throw away everything he has worked for, just to undo the agonizing truth that he could not accept.