The whole thing abt ur heart actually go badump when "that person" around is freakin' hila...

I think he went bathump due to killing intent he sensed and not the uke would explain what happened at clothing store

Not really, even at the end of the story he still felt that bathump when he's with the uke and not coz of the killing intent.

Um maybe that was because he actually fell in love with him. Cuz then what about clothing store? How would u explain that? And even before that it's hard to rule out that uke had killing intent and seme went bathump

I think itd cause the seme is a thrill junkie. It a play on that. The seme fills that adoration of thrill towards uke. In the club he sensed the danger (kill intent towards brown hair) it sparked the sensation of feeling. In the store he felt the sense of danger from the dude with the knife. Thrill junkies generally feel that during dangeriuos times whether the dangers at them its just the situation. And its like a play on words(? I cant find better words atm to describe it) he feels the same budump feeling he has towards thrill to the uke. Like how you have a high when your thrilled or have a high when youre in love. (I hope thats understandable my words just arent wording for me rn ( •ὤ•)
).

Yea now that's the explanation I'm satisfied with

But he doesn't feel it when he go sky diving, that's more like so much thrill between life and death

Im not saying its the exactly the sam and ofc not everyone sees skydiving as thrilling. That is simply a common example to use for others while i was explaining what he meant. Bc for him this person is a thrill and he is in love with that feeling, leading to him falling in love with that person, ie he feels a passion. If you dont interpret it that way well thats fine. Explain how you see it bc thats how how i did and i simply shared that with those who werent sure how to interpret the feelings. ·ᴗ·