Only if it was that nice he kills himself for another reason
Spoiler...
It is a happy ending for Sejin and Ido but for me Ido redemption arch after Sejin recover his memories is what I like the most. It show how regretful Ido is towards sejin. He wanted Sejin to be independent and set him free of him. Atlas it did backfired and Ido can not let go of Sejin cause he love and care for him too much. Lets sail this bumpy and teary arch together before the payoff.
I AIN'T READING THAT SHHH
LET ME DREAM
is the regret arc still wayyy later cause im going to let this one marinate a bit
Oh...... I see, so that's why ML started to hate him as well. I assume ML will have a huge misunderstanding with MC and that'll make ML hate MC for 'betraying' or lying to him or smth. That's where their toxic abusive relationship began,
And after family's betrayal, ML's coldness and harshness, and the memories of their happy time together that is forever gone, MC might have committed suicide, or did something related do the gun in the room. MC used it on himself, and ML finally finds out that MC was only framed by his father and didn't actually betray the ML, and that's where he also killed himself and came back.
Once he came back, he immediately arranged everything to be "perfect" and to "achieve what he wants no matter what" or wtvr. And now he finally revealed all of it to MC and they'll be happily married in chapter 100 or so.