It's been awhile since I've read this. Although I can vaguely remember Siyeol (ml) crying while begging for Aejoon (mc) to forgive him.
LOVE THIS. LOVE PUPPY MLs.
From the looks of it, MC gets overly fixated with people. For instance Chaeun (Ex) and his current bf Jiwoo (ML), they were both rude just like you're typical fboys that's nonchalant at first. Mc pulls away when its reciprocated which may be rooted from the attachment style established when he was a child. Since his parents were both absent, role reversal occured and parent duties were eventually delegated upon him which may have been the cause of his disorganized attachment.
My Bias Appeared?!