Rowan went back to the past (child) where he was saved by erin and her mother as he was about to be assassinated. Through lil erin and her mother, he escaped and he was able to go back to the dukedom where he lived again. The ffg chapters are about his past, how lil erin saved his life and how erin's mother made a magical contract. Years past after he lived again, he did the "right thing" and was able to save the crown prince (who was about to be poisoned from the evil SOB) and he assassinated the evil one (the crazy SOB who ordered to kill them) when he went out the dungeon, he fell down on his knees bec he remembered clearly the scene where erin died in his arms. He is constantly longing for Erin but still no erin in the picture he is constantly reminded of erin but she is not yet to be found in that lifetime, YET (I HOPE SO BEC IF THIS TURN OUT TO BE TRAGIC, I SWEAR THE AUTHOR CAN GO TO HELL AFTER LETTING ME READ IT WITHOUT THE ANGST TAG)
p.s kinda reminded me of witch of mine that kind of tragedy where the ML remembers everything and is constantly longing ㅜㅜ