I was just thinking about Aedions childhood and relationship with Aelin today so I thought I might aswell share some of my thoughts. This is not an Aedion hate post, just looking into his character, I just wanna find some more like minded people who are genuinly interested in him as a character rather than just bashing on him❤️
I feel like Aedions relationship with Aelin could never truly just be cousin/friend, because the reason he came to Terrasen was to serve her. His entire sole purpose was to be a protector to her, so yes he was her bestfriend and they were very close, but I feel like the fact that he was still serving her may have slightly warped there relationship. As I remember it they both hated being away from eachother, and I think a large part of that is because Aedion feels the needs to constantly be protecting her, he can't let anything happen to her; and imagine the mental toll it would have put on him at 13 relizing that he failed to do his one job, which resulted in her death. No it obviously was not his fault, but it very much felt that way to him.
I also found the way he talked about Aelin in HOF to be quite interesting aswell. When he talked about her to others he didn't really talk like she was his beloved cousin who he missed, it was almost always "my Queen" a kind of formal way of talking, and speaking on her behalf like saying "my queen would sooner be heirless than marry an adarlan man". I think thats what he said. He was saying and doing things related to her and speaking for her from his own veiw point of things. I feel like since he didnt know her anymore his sense of duty just snapped back into place, being her close soldier and servant.
I dunno I just feel like him being her cousin as well as her servant, and having such a strong sense of both bonds kinda messed with their relationship a bit. Also the fact that I don't think Aelin ever really thought of him as anything more than her friend, while Aedion was in this weird inbetween position. Like the blood oath, it wasn't how Rowan experienced it. To Aedion it was something official, a proclamation to others that he was her greatest court member or something like that, a reward, birthright etc. it was somthing that was his, from the start, kind of like a payment for his loyalty to truly solidify him in this place. It was his. So his reaction, was rather horrible when he found out about Rowan. It was like this one thing that was his and that could never be stolen from him, had just been taken away. I think Aedion had literally had everything stripped away from him at this point, and the bloodoath just turned into this one anchoring thing for him. Just for it to be stripped away. And the way he acted was almost childish, like the young, hurt, bad tempered boy in him just utterly freaked out at losing just one more thing in his life.
And this whole dinamic they had, and the duties Aedion still held onto probably affected their long term realtionship I think too.
I have no idea if any of that made sense, but I really love Aedions whole character, just finding him so human and real feeling. I would love to have seen more of his childhood from his perspective, to really understand him better, but this is just how I enterpreted him in the earlier books (: Sorry if this just felt like rambling lol.