After Ariana felt fine, she thought she could finally return to the royal palace and live with Raoul as usual. However, Raoul, who is traumatized by seeing Ariana faint due to the long journey, finally asks Ariana to extend her stay at Alison, at least until their child is born.
Considering that Ariana also can't leave her duties as territory lord, living in Alison also means that Ariana doesn't have to travel anymore to solve the problems in Alison. Ariana has nothing to lose with this arrangement. The only one who was sad was probably Raoul who could only see Ariana once every few days.
