Guyzzz

For starters, he’s actively emotionally manipulating her, using her vulnerability—like during their first encounter and involving the ahjussi (the black-haired guy)—to get her to sleep with him. He’s honestly not any better than the ahjussi; they’re both red flags. But it’s slightly different with the ahjussi since his wife doesn’t seem to care about his affairs, and their marriage is entirely for business, meaning there are no real feelings involved, so it wouldn’t really count as betrayal. Still, he’s a red flag. However, Hwa-ik is far worse because of how manipulative he is.

(according to prople who read the novelヾ(❀╹◡╹)ﾉ~)