Happy FUCKING Monday

Yeah, Aeroc remembers but ml doesn't. The regression happened after the both died. As for Aeroc being an omega, from what i remember, this was always his destiny, he was slowly turning into an omega in the first timeline too (i may not remember correctly so take this with a grain of salt). In their last timeline, it's going to be ml who remembers and Aeroc who won't and this will lead to ml's redemption.

Is this a light novel that finished? I keep hearing third timeline???

Maybe this will be explained but the first timeline explained he was turned an omega due to medication unless that just sped it up.

We are currently in the second where Kloff vaguely remembers not really through his nightmares he can't remember. But somehow it changes the timeline where he doesn't marry Rapiel. And now Kloff pursuing Aeroc.

So I am assuming more sadness and then finally the third timeline where shit is "right."

Yeah, it's a novel! And there are three timelines.
I did read, despite the drugs, this was his 'destiny' no matter what, because they're both connected and destined to be together. There's no clear logical explanation when it comes to his omega transformation from what i remember. Try checking out the novel updates spoilers! They explain everything in detail.

Yeah, i know, i just checked out the chapter updates. The events changed because Kloff subconsciously remembers and therefore, since his attraction towards Aeroc is maintained, he's obsessed with him right from the start

Yeah, in the third timeline it's going to be Kloff who finally heals (i still consider him a piece of shit) and makes it up to Aeroc, making sure nothing ever hurts him. Both fortunately and unfortunately, from what i remember Aeroc is going to be blissfully unaware of the past until the end in the last timeline.