
Even with the sad backstory, I still need the ML to apologize to MC. Based on the flashbacks on season 1, Jaewon beats up MC while ML was away. MC went to his father for support, and saw that ML step parents are paying bribe money to his father. And ML thoughts upon seeing MC: he wants to rape him for all the times he suffered.
I really want to ML hear MC said to someone (probably Hae-yol), that he loves the ML, even though it's all just a plaything for him, and go far away as a resolve to never go back to ML's life again (he always says that his mistake was that he was selfishly ask to be in ML's life which is heartbreaking). I want a bit of chase arc. But I really want is when they get back together, ML will say that he loves MC over and over again until MC feels cringy about it.

I think Siwoo liked Byul first and there's something in the past that happened that made him supress that feeling (maybe because they are both alpha, or maybe it is tied to why Byul stopped his idol training). But I think majority of the reason why he wants to suppress is insecurity/anxiety.
And I'll bet when they start a relationship, he will be super clingy to Byul, the exact opposite of what he is now
Went on re-reading and the author said the Episode 1 happens in the present. So if the scene where MC is badly bruised and barefoot, who did that to him? And if it is the present, what are the ciscumstances that the MC ends up getting beat up the second time.
And the ML step cousin is icky because he likes the guy who looks like his cousin.
Wait I didn't clock it until you pointed it out... The cousin is REALLY obsessed or "smitten" with the evil brother lookalike omgg just nasty work