Spoiler!
Welp the ending is kinda vague ngl... Basically amon and Gwen get into a fight and nine thinks amon killed Gwen so he becomes so depressed that he almost vanishes (dragon mates are similar to monsters and they can disappear if they become too depressed,hence why amon makes nine forget things) , so to prevent him from vanishing amon and Gwen come to an agreement to stop the sacrifices and try to make him happy so he becomes himself again .... kinda of a sad end for nine since he's too depressed he barely even reacts to them :(
