[runset]

Spoiler for hikigaya's the biggest liar:

from what yui said to hikigaya about considering her feeling, it is implied that he already knew about yui's feeling for him and he just brush it off and pretend that he don't know anything. Plus the first time in the novel hikigaya said that he was care less about anyone's problem, what his action does betray whatever 8man said about his self. He said that he doesn't care about anyone but what he self destruct himself for someone he doesn't know very well. He is the biggest liar because what he want and what he do denies everything about him self.