"..."
*he didn't say anything, knowing any word he said could make it worse, just turned around, opening a portal to where Finn was, entering and disappearing through it.*
(Hjsbhjshbdhbszbs NO PROBS FR, I was even thinking Line wouldn't manage this situation since the beginning with puns as the prankster memaster he is LMAO)

“…watch Finn.”
*she spat and turned and walked away..far far away.*
(Jawksiissis SORRY

"..."
*he seemed like he was going to say something, but then got static.*
"You're right... that's the worst mistake you've commited in your life, and mine... has been not dying in that determination transfusion I made when you killed yourself..."
*his face shown the most emotionless expression ever seen on him*
"It'd have been better you... forgot forever about me... Error was right: I'm a filthy glitch who should've been eliminated a very long time ago, but from your life... now I realized all pain I've caused to you, so... sorry bout' that, buddy..."
(We're playing the same game now, my dear friend >:])

“Maybe I don’t want that line? Ever think of me when you’re doing something? No! All it is about is you and your pocket folder. I swear..”
*she glared at him punching her nose bridge*
“I don’t know how I fell in love with you..why do I even try”
*she muttered*
(Cannonly Fae would not say this, she’d cry if he yelled at her. But why not make drama?)

(Canon-fanon fact: one of his various and strange problems is the caring self-pride, I'll explain, being his loved ones all his world, he has develop an ego for protecting and caring for them, so when someone tells him he won't be able to protect his loved ones or one of them refuses to accept his suggestions of trying to make them feel as best as possible, he irritates, not just because he cares about them, also because it works like a wound in his ego lol)

*he got static, like meditating about the current situation, then he glitched bad between snarls and grunts of annoyment, until he turned back to noemal.*
"UuuuUUUUGGGHHHH- FINE, fine, alright, just wanted to make you feel better with that-"
*he snorted but breathed deeply.*
"I'm sorry, okay? Sorry for being such an obsessive guy-
*he said that with an annoyed but more calmed tone*

(Most probably, Canon Line wouldn't do this, but wanted to do the same as when Fae and Line argued so bad, yeh he's my lab rat OC ^^)