It’s so sad to see him change but it was inevitable :( he finally became like that becau...

It’s so sad to see him change but it was inevitable :( he finally became like that because the one person who understood him broke their promise. Im not blaming anyone at all but I truly truly hope we get to see chang geon back to his older state in the future, where he becomes like that one dream he had where seo accepted him. I also like seeing him flustered