Responses

This, all of this. I liked this story until Sejoon had a little hissy fit over learning the past. Disregarded everything that had been done and what they shared to have a tantrum and come crying back to him. I hate when authors seem to selectively make characters stupid so they can move the plot where they want instead of letting the act human.
...or whatever the fuck it was, was all so fucking contrived. There was absolutely ZERO reason for shit to go down like it did. Had they just fucking communicated!!! On top of that, Sejoon seems to just WANT to misunderstand, then make loud, absolutely idiotic, and rash decisions based on absolutely nothing except the insanity he drives from his own goddamned mind! Then Taeheon just doesn't say ANYTHING! He lets Sejoon make these ridiculously fucked up decisions for no reason other than his inferiority complex. The thing is, HUMANS DON'T ACT LIKES THIS! It goes against everything build into us as beings of the animal kingdom. Ball Python snakes are smarter, and they dumb. I know, I have one. Cute, but dumb.
My whole point here is that this entire fight they had was contrived as hell. The accusations and beliefs Seeking made and had were so incredibly illogical that it was obvious the author the the whole thing in just to ramp up the emotion when they FINALLY ACTUALLY USED THEIR BLOODY FUCKING WORDS, and inevitable got back together. This is how I would have written it:
Sejoon: find out about his past and as a mature adult, he tells Taeheon he's got some pretty big feelings going on and needs some time to himself to figure them out. He then tells him that as soon as he feels ready, he hopes to have an open and honest conversation about everything that happened in their combined past.
Taeheon: first I'd have him explain in a way that shows her loved him and tried anything he could to help. Then I'd have Taeheon understand Sejoon needs a few, find a place to stay, himself, and keeps Sejoonie safe with his men protecting him. Make sure Sejoon knows he's a text or phone call away and that he will be there at soon as he's ready. Also promise he'll check on him every day to make sure he's ok enough to not hurt himself.
Overall: I'd make them have the talk of this episode after about a week during which sejoon reflects on what he's been told and comes to the conclusion that IT'S NOT POSSIBLE FOR TAEHEON COULD HAVE BEEN ANYTHING BUT CUTE WITH AN ATTEMPT TO HELP WHEN HE WAS A LITERAL CHILD AND THAT HIS ACTIONS BACK THEN DON'T DEFINE THE MAN HE HAS GROWN INTO TODAY.
Because this whole thing was one blip in à story I otherwise do love, I have it is 5th star back, but I'm watching you Instant Family. I'm watching you. -_-