I’m guessing you’re talking about the wedding crashing arc (idk what the fandom collectively calls it) but ya that did happen but HYJ pretty much crashed that wedding HYJ style Lolz. Also as for them being in love, it’s not very explicitly canon in main (tho there’s pretty much an agreement with everyone in the fandom they’re canon haha), but the extra did have a chapter where HYJ did say he loved SHJ without activating the skill which indicated that he really does also love SHJ back, and SHJ is just very clearly in love with HYJ.
They do have feelings for each other, they even confessed to ones another. We'll Hyunjae is the one who is more upfront about it. But they literally brush it off with a HALF ASS excuse that Hyunjae can't be in love w someone because they'd be in danger.
As if they didn't beat all types of ppl n things together already, TILL THE VERY END
So obviously, shj and hyj definitely have something going on. I've been reading the novel and they are like, 100% gayer there fr. And guess what I heard? Appearently they actually have feeling for each other! I may be wrong through because this is what I've heard from other people, but they caught feelings and couldn't be together?? Cuz of shj's sponsor or something?? Something like 'the world would go boom if he falls in love' ig? So he went and married someone he didn't even love and left hyj in Korea?? To protect hyj??? This is evil and hyj was super heartbroken???? And his brother split him in half or something?? (Kdj style