Yeah, my 2 cent on Morgane going full on Kill Bill style, but instead of slashing she just fuck every one that even remotely count for Avar...
The thing is Morgane is basicaly a yandere... I don't see a world where she would forgive Avar. No matter what she did and responsible she might be, she has never been one for fairness and shit. In the end Elaine and Avar were kinda manipulating her from the start, thus another reason she might not be feeling that guilty.
Another two cent Avar seeing Morgane ready for war might be a turn on for him. He's a feisty one. Dam, his bestfriend/new girlfriend is a violence freak, maybe by bullying Morgane this way he actualy made his ultimate woman.