Spoiler
Hmm, it's kind of an open ending. Aeroc does fall for Klopp again though (but not with some difficulty as he is the crazy, obsessed Klopp in the past. Aeroc basically abhors him the moment they met. He isn't the lovestruck fool he was in the 1st timeline)
However, it's kind of bittersweet. Klopp kind of still longs for the Aeroc in the 1st timeline. He looks at the current Aeroc and sees he is still noble, pure and arrogant. He still remembers the person he ruined.
In this timeline, he resolves himself to love the current Aeroc and vows to tell him that he loves him all the time. Hoping that maybe, just maybe, the whispers of love that he couldn't speak to the 1st timeline Aeroc, would reach him through this current untainted Aeroc. Pretty bittersweet imo.
Spoiler
No, Klopp does not die. Neither of them dies.
Though Klopp did attempt to do so as he was in constant despair from not being able to be with Aeroc (Aeroc thinks Klopp is a maniac due to certain events. Keep in mind he is still the old, insane Klopp from the 1st timeline. He's bound to be unhinged)
This containt spoiler, but sorry if i made some mistakes bcs i read this months ago.
For me its a bittersweet ending, neither of them happy, kloff lost his memories (due to failed su*cide attemp), aeroc still love him even in the 3rd life poor baby :(
Aeroc pretend that they'd been married and called kloff his husband and this time its Kloff that lived in the cabin.
Spoiler
Klopp didn't lose his memory in the end. He got it back eventually. Aeroc took on the job of caring for Klopp after his failed suicide attempt. He was already catching feelings for him anyway, he was just disturbed at how Klopp seems to be unhinged sometimes (not to mention he keeps calling Raphiel (their 1st son's name) during his delirious moments)
Its an open ending where Klopp seems to make it his mission to woe Aeroc once more.

I know this is the 3rd timeline or top version, but someone could spoil me, please, happy or sad endin(⊙…⊙ )? Bottom dies?