This may sound like me being a negative Nancy but I don't like this episode much. They skipped so much content that honestly I'm not even sure they clearly defined what Tinasha's relationship with Cuscul and its "king" is. I'm not even sure I could enjoy this anime if not for having read the manga. And since the anime has now overtaken it I'm not sure how much I can enjoy of it now.
never read the manga or LN. I believe they showed all they needed to of their relationship. Betrothed, they were friendly. two factions appeared, he needed more power. stab stab, betrayal. her power went on a rampage and wiped out pretty much everyone else while he escaped. took her 400 years to find him and get revenge. that was more than enough explanation for me.