Betsy was arguing in court for Captain Jubilee’s personhood before she was interrupted by Merlyn’s attack. That’s not a good look no matter who comes out on top there: if Betsy failed to make her case, then they're chronal abominations and either Jamie’s allowed to keep doing it or Saturnyne punishes him for this transgression against her, and if Betsy won the argument then the king permakilled a woman (a Captain Britain, no less) who posed no feasible threat to him for little more than poops and giggles and the baseline Betsy not only never gave a crap but actively supported him even after witnessing the act. Either way he’s been splintering reality apart to make his own personal slave corps.