[As Alex says a jerk who liked to troll people, Sayori averts her gaze with a too-innocent veneer in her eyes. She doesn't say it out loud, but it's a very clear "he's definitely that too."

Anyway.] ...he showed me the poem he wrote. And...

[The troubled press of her lips sobers her expression.] He said some personal stuff I shouldn't really say. But I think he's lonely. Like— really lonely, and it seems like it's been that way forever? And... [Man, she really used up all her words on that poem.] Y'know. Being alone like that can really mess you up.