If soowon bad then why he the most adorable and misunderstood character ever

I am really sorry but where is he missunderstood? He killed yonas father in front of her, tried to kill her, and to top it off on her fricking birthday, like why? Could not he have waited a week after, or a day? He has an illness yes, but he is no saint. He looks handsome and is a genious, but what he did...my morals screams that he is no good, even if he looks cute. Or If I did not get your point sorry.(￣∇￣")