I see many people angry at Rhysand after the acosaf, ignoring the fact that this book is not separate from previous books regarding character building. If you have read the previous books carefully, it is easy to understand why Rhysand is uncomfortable with Nesta. Nesta not only was negligent with Feyre for years, but she was also abusive. When Rhys tells Feyre about Mor and her family, Feyre understands why Rhysand couldn't stand Nesta. Az and Mor were people who were abused by family members. Rhysand is more relaxed about Elain, perhaps because Elain was more receptive to him and Feyre, while Nesta never showed that she really cared for the woman he loved. This was the person who threatened to tear Feyre's throat if she put Elain at risk. Her preference was never a secret, and much of what Nesta did to Feyre was because of Elain.
Even so, Rhysand tried to help by offering a job and opening his house to Nesta, something she later refused on the grounds that he did it because of Feyre. I would like someone to explain to me why he should act differently? I see a lot of people saying that he should be grateful for Nesta participated in the war but I think that is a poor excuse to explain why Rhysand should suddenly love Nesta. Simply because the war was in everyone's interest and beyond Nesta, Tamlin, Kier, Eris, Beron, Greyson, were people who also participated in the war and people with whom Rhysand does not have a good relationship. However, in a war, you put your differences aside and fight alongside those who are your enemies. Furthermore, you have to ignore the fact that Rhysand in acosaf is not being himself because Feyre is pregnant and it is affecting him to a degree that we cannot understand because we have no point of view of him or Feyre.
All we have is Feyre suggesting that he was unbearable, as if she didn't know what else to do with him. You need to remember that we are not talking about humans here, but about a male fae with Prynthian's most dangerous instincts. When Feyre accepts the fact that she is Rhys's mate, he explains to her that he could be anxious at times, but that he would do his best not to look horrible for it. So let's talk now about Rhysand hiding from Feyre about the severity of her pregnancy. I am writing this based on what I remember reading, but I believe that at no time does it say that Rhysand would not tell Feyre and that he would let her die without knowing it. All he says is that he has not yet had the courage to tell. Obviously, he is wrong. Feyre deserved to know as soon as the problem was diagnosed. But that does not mean to say that you cannot understand why Rhysand is hesitating. It wasn't just the life of Feyre and the baby, it was his life too and the weight it would represent for Feyre. Suddenly, the entire night court was threatened thanks to the silly bargain (although I understand it too) that they did. It was too much to process, coming from a person who had died not so long ago. People like to talk about Nesta's trauma to justify their choices, however wrong they may be. I think it is necessary to make the same effort to understand the other characters. It is also necessary to take into account what happened in previous books. If you understand Rhysand, you know that he has a habit of carrying the burdens to spare those he loves or that he has a huge difficulty talking about what worries him, how he feels deep down.
In his extra chapter, Feyre says that he did not always tell what worried him immediately, that he sometimes needed time to open up to her. Let's remember that he was unable to tell Feyre that she was his mate and that was also something huge about Feyre's existence. But at no point does he say that Rhysand would not tell, he just explains why he hesitated to tell, although he had tried many times. Again, he is wrong not to share the burden with Feyre as soon as he knew, it was in her full interest since it was something that happened in her body. But at least knowing the character, I can understand why he hesitates. Aside from the fact that he doesn't want her to be unhappy and is concerned for her well-being, although Feyre has to decide that. Anyway, these are my thoughts on why Rhysand doesn't tell Feyre the truth as soon as he finds out, and in fact, there was no one to tell but himself. There were too many things to assimilate. Things that the other characters couldn't understand because they didn't know. Rhysand was never perfect, he is flawed in many ways and I believe that is the beauty of the character.
