
He loves/covets Arok from the first time they meet. Kropp did not love Rafael, at least not that kind of feeling towards Arok. He only chooses him because Rafael is omega and suitable one to marry, basically Kropp in first life chooses stable life, an omega wife instead of scandalous relationship with Arok, an alpha at that time. He purposely shows Raphael off to Arok just to taunt him. I think that what really pushes Arok off the edge.

yeah ik, i just meant that it was out of nowhere like-- "i actually like this person b-but he's not an omega, i made him suffer but now i am regretting it! > <" when the story built up so much around how he hated this MC that he made him into an omega (then why not do this in the 1st place!?) and etc. etc. basically made him suffer. but oh well, im not rlly used to reading yaoi, ig this is yaoi logic

Klopp hates Arok for being a monster killing his wife and unborn child but before that, he lusts after him. Klopp's like the Frollo guy in the The Hunchback of Notre-Dame, blaming Esmeralda for making him sinned or wanna sin (because Klopp want to love Arok). In the second life, you will see it clearer, they're kind of soulmate, so bound to love each others.

No, dear it's not yaoi logic. There are plenty amazing yaoi. Check them out.
And speaking of these two, there's gonna a whole to experience again. Kloff fell for Aeroc at first sight. But he was in denial and stuff. And also kinda liked to provoke Aeroc. Now that he dead after all his sadism he gonna go insane. And both of them, Kloff and Aeroc will have their own parallel regressions. And a new pattern of story will start. But I assure you Kloff is gonna pay for HELL. And everyone's gonna LOVE it!
the story telling is pretty good. the only part that i don't get is how the black haired guy out of nowhere has an interest on the protagonist (around the end of series), like isn't his character revolve around the fact that he's on a revenge for his dead husband?