
I had to re-read some chapters from last season. Jitae's 180 seemed out of nowhere this season (imho) because of how the chapters were broken up, but re-reading, I realize it was always the elephant in the room.
Quick recap:
Ch 52: Jitae leaves Mi-eum at home. He tells Mi-eum that Ms Yoon (Jung-ah, Jitae's mom's friend who's now Jitae's assistant) will drop by to check on him.
Ch 53: Jitae, at the office, gives Ms Yoon the car keys & tells her to check on Mi-eum at home (unknown to us at this point, Jitae already suspects she will try something).
Ch 55 & 56: Ms Yoon meets Mi-eum at home & they talk about the past with Jitae's mom. Ms Yoon expresses her grievances against Jitae. The scene cuts when Ms Yoon, agitated & upset reaches for Mi-eum.
Ch 60: Jitae arrives at home & as he enters, he realizes something is off, shoes missing at the entry way. He tries to call Ms. Yoon, no answer. We see his possessive & obsessive nature coming out in his self talk. Mi-eum arrives.
Ch 61: Mi-eum says he was just out for a walk & to get groceries with Ms Yoon. Jitae calls out his lie. Sees the rope marks on Mi-eums wrists. Asks why Mi-eum is protecting Ms Yoon. Tells him he's forbidden from seeing her & that he's keeping Mi-eum locked up until things settle because he's anxious. Mi-eum recalls Ms Yoon's words, about the monster Jitae becomes when it's to do with Mi-eum.
Ch 62: Flashback a few hours: We see how Ms Yoon did try to kidnap Mi-eum & was planning to kill (?) him... not quite sure if she planned to kill him or send him away somewhere. They are intercepted by Jitae's men. Mi-eum begs not to tell Jitae about the incident. Jitae's men also hints how Jitae loses it when it's to do with Mi-eum.
(Mi-eum gets a call from Jian at this point which we don't find out until the end of the chapter).
Now poor Mi-eum is kept chained in his room while his unhinged boyfriend makes him breakfast(/TДT)/
And it's clear that Mi-eum is upset about all this shit but he feels remorseful that he's the reason Jitae's lost his marbles. Mi-eum also believes he deserves it. Also probably not throwing hands because of whatever Jian told him on that phonecall.
I'm here for Mi-eum & Jian. Hope they both make it out of this twisted story with some semblance of a happy ending.

At Ch 52, author-nim said, "Nah. Fck it. I'm out." The End. ╮( ̄▽ ̄)╭

Heard from the grapevine that authors are getting forced to end some series early because of too many people consuming outside the legal outlets (affecting the profits of their company.)
Seeing as this got super popular here, it can be one the series lacking the traffic where it matters (so if you can afford to, please support series on their websites — chapters are actually really cheap.)

Yes, get out of that environment and breathe a little away from the situation, and away from Ido. Even if they get back together after some time, that's fine.
Also good to hear Ido take full responsibility for ruining him, not "partly responsible" like you know who, "a horse by any other name" or whatnot ( ̄∇ ̄")
Time to re-read the prologue.