uke : is there anything you like?
seme : hmm honestly, there are more things that i hate than things i like.
uke : then tell me what you hate!
(seme hearing some news about sejo group in allegations of accounting fraud problems before he answer )
seme :...
seme : ah i...
seme. : i really hate rich people.
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this is the convo they have at the end.if u didnt understand why he tell that. he ask him "what he hate". he didn't tell "I hate rich people" out of nowhere. "he answer him of what he hate" there's a difference between telling that out of nowhere and answering something that someone ask.
btw. seme knows that uke is poor( cant afford much food) that he is not a rich person(uke pretending being a poor student) so he openly told to him what he hate.

WHY WOULD U SAY THAT TO HIM