Wasn't Sasuke's feelings explained both in the final chapters and in an interview later on? Even if I am mistaken about the interview then I am not mistaken about the final chapters. Sasuke admits that he always felt love for his comrades and that he cared deeply for them. Though because he once lost everything and everyone, he saw it as a weakness and put it unto himself to shoulder that pain so he could focus towards his goals to change the world. Both through revenge and hatred he sought change and this is the reason Naruto wishes to fight for him, because Naruto refuses to let Sasuke shoulder everything alone.
This also bottles down to why Sasuke gives up in the end. He realizes that in his quest to shoulder everything by himself in order to protect everyone, he is causing them all more pain than he would ever have done if he stood by them. He realizes that after Naruto's entire "when you are hurt, I feel that pain" speech. This is also where he opens up to his feelings rather than hide them away as he has done his entire life. This isn't specifically pointed towards Sakura however, thought the scene that is when Sasuke leaves for the final battle and he stops Sakura with Genjutsu.
This scene is mean to draw a parallel to Part 1. (In-fact the entire final part of the story is meant to do that.) In part 1, Sakura tries to make Sasuke stop from leaving by opening up to him. Sasuke replies with the phrase; "You are annoying" and continues to knock her out before leaving, though not without thanking her. When he leaves for the final fight, Sakura opens up again but this in a more mature manner. He looks at her and states the same as he did then, but enforces it with; "You really are annoying". Sasuke's ultimate goal is simple, to ignore his own feelings for the better of the world as he sees it. (Which is what Itachi did.)
So whenever Sakura opens up to him, he has a hard time doing that. Thus referring to her as "annoying" as she single-handily makes it difficult for him to stay true to the path he had chosen. Which is why he knocks her out, stopping her from coming after him. That is Sasuke's display of love prior to adulthood. He tries to ignore his feelings towards others, and especially Sakura. In the end he caves in and give up on trying to ignore it, thus resulting in a love shared between the two. A love that has been there for years, but ignored by one side and embraced by the other. Now the ultimate scene that counteracts this "secret love" would be the scene after Danzo's death where Sasuke tries to kill Sakura.
This is less about Sasuke and more about his role in the story. Naruto is the one who never gives up on trying, and will never stop for what he believes in. Sasuke is just the same there. However, were as Naruto is the one who blindly follow what he believes in and feel with his own body, Sasuke blindly believed in what he felt. During his fight with Danzo, he was so trapped in "darkness" and "hatred" that it blinded him completely. That was a big plot point in the story. From Naruto's side at least: "Never give up on your friends, no matter how much they want to give up on you" or "No matter how much the world hates you, never return that hatred."
Now the second scene that talks around this love is ironically shared twice in a row, it is the scenes where Sasuke leaves Konoha again after the end of the manga's main story. When Sasuke originally leaves after the war, he refuses to take Sakura with him. He states he needs time to see the world, feel it and understand it. Now this part is up to subjective opinion. Though it can be taken in the way that Sasuke needs time to understand himself and his feelings as well as the world he ignored for so long. Thus he leaves alone. But a big difference here, between the last time he left Konoha is simple. This time he does a gesture that is down right holy to him.
The tap at the forehead. A sign of love for him, passed down by Itachi. A kiss isn't the only ways to show love, that should be a common fact though sadly it isn't. Anyhow, the gesture isn't the most important part here either. The important part is the he promises to be back one day which is unlike what he did in the past. Now he isn't running from his feelings or hiding them, he wishes to understand them and come back to them. When he later leaves Konoha after meeting with Sarada, he still refuses to kiss Sakura and leaves without doing it. Exactly why he did this is down to subjective opinion again.
Though it could be that Sasuke doesn't value a "kiss" in the same manner as he would other gestures of love and thus it isn't important to him. That or he is the kind of guy who thinks; "I will save the kiss for you until the day I return". Sasuke was a part of their life, of his daughter and wife's life for a long time despite being far away from them and being unable to write to them. But the love he shared for them holds strong even to this day. To some, that is a stronger example of love than anything as being away from someone you love for long is more painful than most things.
This was my initial analysis of Sasuke's character and his love for Sakura, and it still holds true. As we know Kishimoto is awful at writing romance, his writing isn't generalized and thus will be understood differently. That being said, my favorite ship is still Naruto x Sasuke.
