I kinda want to see what is what Hee-Soo's older sister did to the cake he was decorating, though...? (although, it is implied she "fixed" it similar as the one she was making?).
But dear god, his family is too shitty. I feel for everyone's families here, tbh. Although it's understandable that Hee-soo's sisters didn't quite like him cause of favoritism, that doesn't excuse them to act the way they did towards him :/, ESPECIALLY since the resentment goes WAY up until the present day. Geez.
... however, regardless of all of this, it still doesn't make me think he is completely "free" of suspicious thoughts about the whole ordeal about Moo-yi's stalking (even if it was by pure coincidence and mayhaps he didn't play a more suspicious active part into it). But I somehow expect that his particular interest in him is probably "relatable" stuff and so, and so. Probably. Hopefully. Buuuuuut, at least we know he he relates a lot to Yoo-il now, and that's a good start, I guess? At least it looks he caught those feels (finally), lol.