User blog comment:Jopjopjop/High School DxD BorN episode 3 review/@comment-25537445-20150418185337/@comment-1359322-20150418185733

They could just do something like Loki betraying them next ep, that's why the Vali Team decides to fight Loki. Or Vali was trying to recruit Fenrir and needed to get close to Loki for that purpose.