Regression #1

FL regresses and changes her fate; her Husband in the first timeline who was summoned from another world later on regains his memories of the first timeline near the end of season two and can be seen instantly realizing why he felt he was losing her and why he was so attached to FL.

She isn't a reincarnator, but pulled through a multiple regression loop that she keyed in during the final regression, recalling the previous timeline as though it was a novel.