Geraint's dad calls him home to take over his kingdom, and after a few years of glorious tournaments, Geraint runs out of people to fight and slips into a life of decadent idleness. When Enid mourns this change in him, Geraint completely misinterprets her, decides she's cheating on him, and starts a new quest out of spite. 

CONTENT WARNINGS: Controlling relationship. Geraint decides (without evidence) that Enid is unfaithful, makes her go on a quest with him into the wilderness with basically no supplies, orders her to be silent, berates her when she isn't, puts her in dangerous situations, repeatedly threatens her in a way she takes seriously. Threats of sexual assault. Various people they encounter on Geraint's quest plan to kill Geraint and take Enid for themselves, and Enid overhears these plans each time. When she refuses an earl's proposition, he threatens to kill her husband, take her, and then throw her aside whenever he loses interest.