He does get his old memory back and his lovey dovey phase was not erased per se but he doesn't acknowledge it. The memories keep popping in his mind now and then(mostly the sexy times). But i think you needn't worry, they won't be at odds for long. Ive started and finished reading it yesterday and I was worried id be stuck at a cliffhanger by the end but it was a prelude to their relationship getting back to normal.

I read online that he had another memory loss and don’t remember the part where they were affectionate and in love, now, befor I’ll continue this, I need to know if he has back his memories and if they are happy togheter