That's fine. It's fine. He was already planning to do it. He wanted a more foolproof method but he knows where his carotid artery is and he has a knife on him and if his hands are trembling and he feels like vomiting and his vision is swimming, well, he still has proprioception, so before the friendly men in the full-body armour can do anything he can grab his knife and close his eyes and—
"I'm saying that I systematically abuse you for nearly a whole year, I destroy everything good about our relationship, I do it for no fucking reason. I do it for no fucking reason except that I'm selfish and cowardly and jealous. I frogboil myself into thinking it's fine, and I frogboil you into burning every single other relationship in your life."
"I traumatise you. You stop going out in public, ever. You stop seeing your friends. You get one partner, six months after that, and you go to one dungeon with him and then break it off immediately. The thought of getting a new partner sickens you. You can't ever let anyone get as close to you as I did. You stop looking, and every new potential partner Quasar looks into for you gets mysteriously otherwise engaged, courtesy of me. I bribe them, I get them other partners, I arrange for them to just never even get to meet you. You don't get any new partners. For five years, you don't get any new partners.
"Someone else would have died, but of course not you. You have better backlash control than any other esper alive. You spend five years partnerless, and you are chronically backlashed, in pain, exhausted, and you're still one of the five most powerful espers on this planet. You overwork yourself, because you can't do anything else with your life. Min Woo-young is your only friend, and he's probably the reason you survive at all."
"Wh—why—why would you do that? Keep partners away from me? That—makes no sense—"
"Because someday you will have to face a choice between me and dying, and I am betting you'll choose me. Because you'll forgive me everything, afterwards, since I've done it under so much backlash—as I, myself, am not getting guided very much. More than you, but I am actively manipulating everyone around me into thinking I am doing so much better than that. I have a few partners, one of whom lasts the better part of three years, and I'm horrible to them. I'm horrible to him. He's a sweet kid, and he hero-worships me, and I make him love me, and I'm awful to him. His name is Kim Insoo, and he hasn't awakened yet, right now in the present. But I don't get guided very much, because that monstrous version of me feels disgusted by the idea of letting anyone but you touch me. There is no Kang Jaeha without Lee Tae-gun, I think, and so I focus my entire life on the goal of getting you back, so that I can exist again.
"I am so, so, so bad at knowing myself when under no backlash, though. I don't realise how much I will hate myself for everything I've done. All I can think of is getting you back, so that I can be."
"And then another person shows up, whom I am also so, so thankful for. Her name is Kim Hye-jin. Currently, she lives in Japan, and she's awakened recently. She's half-Korean half-Japanese, and her partner in five years is awful and they break up in such a messy and spectacular way that she decides to flee to Korea rather than stay in Japan with her guild. I imagine Quasar was jumping at the opportunity, since it seemed like there was a huge chance she'd be a good fit for you, and I can't imagine they didn't suspect something was weird about how every other lead of theirs kept failing. They wanted to jump on it and not miss their chance.
"I'm completely blindsided by her. She's everything I'm not. And the guild president bungles his introduction to her extremely badly yet she still—you two are so compatible you can guide each other across the room from each other."
"...Tae-gun-ah, you can guide me from where you are. I can't guide you that far, but the reverse is true. Our compatibility is very asymmetrical in that way."
"I never bring this up in the—original timeline—because it feels so scary. It feels so scary that I need you more than you need me, even though it's true, and I don't want to make it any more true.
"But you and Kim Hye-jin are more compatible than that. It's mutual, too. And you are so, so wary of her, and—I don't know what happens. I have no idea. But you accept partnering with her, despite everything, and you start getting close to her."
Food's done, so he starts to serve it and sits across the table from Tae-gun. "It drives me out of my mind. She's ruining my plans. She's fixing you, she's helping you, she's helping you live and bringing you happiness, and all I can think about is how much I hate her. How she's getting in my way. How she's an obstacle."
"It's so insane, Tae-gun-ah. It's so insane. I've driven myself to a point where I can't be happy for you. I can't see the good in someone making you live longer. Because it gets in my way, you see. Because if she helps you, I can't. If she has you, I don't."
Tae-gun's not touching his food at all. He's just—listening. He doesn't know what to make of it, it seems like whatever happened Jaeha believes it did and—and there are, actually, checkable elements of that story. If there is a half-Japanese esper called Kim Hye-jin, if they are that compatible, then, then...
"I go after her. I try to push her away. I try to scare her. I make her feel unsafe. I make her unable to go out in public. I corner her, I trap her. I keep hoping she'll give up, she'll decide she can't deal with it, she'll leave you because I'm too much. But I'm planning to kill her. Because if she doesn't leave, she needs to be removed."
The scariest thing about this whole story is the way Jaeha's telling it in such a—matter-of-fact tone. A description of events. It sounds more real, for that.
"A new confluence starts. That's... six years from now, in autumn. And very early in that confluence—you've been to Volcanic Range this time, haven't you?"
"Kim Hye-jin's power is pyrokinesis, but she counters Volcanic Range in the weird way powers sometimes do. She can outburn its fuel. The two of you go into it, you notice her power seems to somehow be very effective at killing monsters, the dungeon realises she's an actual threat and tries to kill her personally. The dungeon tries to kill her personally by sending several dragons at both of you and then spawning a dragon golem the size of a building from underground to devour her."
"You do something insane and waste a ton of backlash killing everything around you. And you know, somehow, that she's not dead, maybe because the backlash she's consuming to survive is so strong you can feel her.
"You dive into lava to save her."
"...Tae-gun-ah, what would you do if a dungeon had kidnapped me like that and you thought you could reach me by diving into lava?"
God, he hopes Tae-gun will give the right answer. If he doesn't—if Tae-gun loved Kim Hye-jin more than he ever loved Jaeha—