After causing a monstrous amount of chaos in Ponyville, ending up hurting his friends and losing some of their trust, he makes a deathly decision. After a while of beating himself up, he goes for the chest, either planning to kill himself, or something else. But, considering he has 2 souls now, Chrysalis has a say in it too..

(This is not in the canon universe. This is just a AU, so not every character acts normally.)