There are things that aren't meant for each other, maybe destiny let you to meet that person but it doesn't mean that there's this so called happy ending.
"People are not met by coincidence.
likewise, nothing in life happens by default.
There's a reason they are supposed to cross our path because there is this thing called Fate."
It was never intended for Jeon Wonwoo and Kim Mingyu to meet-certainly not in the way that it did-but destiny intervened and irreversibly changed their lives.