I've been thinking a lot about why people are so mad about Azriel's bonus chapter and the biggest thing seems to be that they read his outrage as feeling somehow... Entitled to Elain. And I can see that, I guess, if you completely disregard literally everything about him lmao.
This is a man who has always been the outcast. He was abused and locked away as a CHILD because people were afraid of him. Do y'all realize how damaging it is to be so thoroughly othered from the time you are born? It has been so violently inprinted into his mind that he doesn't belong, that he is other, that he is somehow lesser, because of how he was treated as a child. Because of how some people STILL treat him! Cassian earned the begrudging respect of the Illyrians but none of them want anything to do with Azriel even now. He struggles, constantly, with these feelings. It's obvious in everything he does.
Cassian and Rhysand love him, dearly. There's no doubt about that. They know he belongs right there in Velaris with them, they know without a single doubt in their hearts that regardless of blood he is their brother.
But he doesn't. That damage runs deep. He will never, never feel fully totally secure in his worthiness to be associated with these people who he loves so much they may as well have put the moon in the sky for him.
Now imagine that everyone around you has scorned and hated you your entire life, save for two people. Two people who you could see yourself in- outcasts, bastards, unwanted, abused. And you grow alongside them, you watch them flourish, and together you become the most accomplished bastards in history.
And then the universe itself unites them both with beautiful, powerful, amazing mates who love them just as much. Sisters for your brothers whom you adore so deeply.
And then the universe itself seems to tell you that you are not worthy of your own mate. You are not worthy of the third sister.
You are not worthy because you do not belong. You do not deserve your brothers' love and you do not deserve to be a part of them.
You will never belong. Those people who burned you, who beat you, who locked you away, were right. You are a monster. You do not belong.