do you think ciel talks to sebastian about his feelings regarding his brother, or do they both avoid the topic?
An interesting question.
Thank you @zimowahistoria-kuro for it.
To be honest, no. I do not think, that Ciel talks to Sebastian about his feelings at all. Because he doesn't want to be seen as weak by Sebastian.
However.
As their contract devolved within their relationship, I feel, as if Sebastian grew more observant about his little soul.
I mean look at this scene. It is one of my favorites.
If I remember right, then in the anime Sebastian asked him three times, if he was alright. Sebastian knows deep down - and not just because of their connection, because in my headcanon he feels certain things coming through their bond. There is even a scene, where it's pretty clear.
There is something, that must alert his demon-senses, whenever Ciel is bothering something very much.
But just as so many things, Sebastian doesn't stop here. He evolves around the whole story, to make his job literally perfect. Just as he learns certain things by getting a feeling - or a sense for it. So I believe he is more attentive, than ever before in his whole existence. Because Ciel is everything for him.
I can continue with thousands screenshots of the panels. But I think you understand, what I mean.
Sebastian is absolutely devoted. And so caring. While Ciel would have in the past get goosebumbs from Sebastian caring so much like that ...
... now it's pretty normal for Sebastian to care and be softly like that toward Ciel.
Still. From alone, Ciel doesn't speak about his feelings.
But.
I believe that Sebastian, when he feels the moment is right, will take the chance, to ask him, what's on his mind. And so bring Ciel to answer him. Maybe nut as open, as he would like him to be. But it is a beginning. Later, they will speak more freely with each other.
Sebastian, I can imagine, doesn't have any problems with openening up. At last up to a certain point. I wonder, if we ever get a moment, where he doesn't reacts so shocked about his selfdevolpement toward Ciel and ignoring because of this some orders.
Boy was he angry about himself, reacting out of fear for Ciel and playing straight into Undertakers hands moments before.
Now I will stop, before this goes totally out of my hand.
I hope this answered your question and you enjoyed it.
Thank you for this. It really makes fun, analysing and thinking a little over the hill.