But soon the fantasy world began to crumble around him, turning to dust and leaving him stood in the rubble. He realised he didn’t feel happier because it made him happy to think and feel what he did, it made him happy because he’d fooled himself into a belief that he soon realised was dangerous and stupid. 

Something I wrote because I was feeling angsty, it's a little confusing I think, but all him's, he's etc in italics, mean Sunggyu.