Responses

Not to invalidate her feelings but Hestia is not in the right headspace. She’s obsessing about getting revenge for Kaelus. A revenge he doesn’t really care about and that he already told her doesn’t matter to him because he’s been trying to tell her that he cares more about their relationship with eachother and being happy together but she’s not hearing/listening to him.
I think it's normal for hestia to act this way,I think she's not angry because cael choose not to stripped Diana of her title,But i think shes thinking that caelus still have feelings for Diana that's why he doesn't want to stripped Diana of her title,hestia feels like all she did for caelus is for nothing,she doesn't know the real reason why caelus did that,because until now she thinks that she's just a rebound and thinks until now that caelus still have lingering feelings for Diana..all in all is just a miscommunications ..