
I wish it had been tagged
There is a reason I deliberately avoid anything with amnesia, I've been burned too many times. And here it was just- it was perfect until that point, and then completely randomly the author just decided it was time to wreck all the lovely relationship build-up the ship had had and make the love interest not only forget about the MC, but turn them into a whole different person!
(Really, there was even a time skip during which they got themselves adopted into the villain's family off-screen with no explanation, changed their name, and got a personality transplant. Now they feel more like an OC, and I can't help but wonder if that was what the author actually wanted to write in the first place).