Dokyung doesn't deserve any of this

Dokyung was caught in all of this affairs and he willfully accepted it because of his affection for hajin, he was brave enough to continue on and take the risks that came along with dating hajin. But hajin cant do the same? he cant be brave enough to stop jaehyuks assaults and manipulations and abandoned dokyung just like that?? I don't even understand why he would even do such a thing dokyung was hurt and he broke up with him as if that helps (╬￣皿￣)凸