Ahhhh, I think Im getting it! For those who dont understand or if my theory is correct, Kael "sleepwalks" in search of Sajun when he died in their old life. But whenever Kael awakes he has no memory because it is not clear to him who Sajun really is!
I have an ao3 account and write! Do please look me up and read my work! User is the same as my user here! Currently have 3 works