if sakura didnt care about naruto, then why would she care if hinata loved naruto? during that pein arc and during that speech hinata gave, sakura was shown not looking too happy at their interactions and this time, though hinata was content during the hug scene, she was not so content this time. "..." means shes got her eye on what the hell is going on between sakura and naruto and "...."sasukes back, kages, back...got my eye on that traitor and edo kages.
no interaction between sakura and sasuke has been even remotely close to romantic. this couple as of now will never happen and sakura hasnt shown any interest in sasuke in quite a while. the love letter thing and she thought of sasuke in a negative and sad way like always. when he returned, she didnt jump for joy...she looked stunned, skeptical, then ignored him when she told naruto she had a powerup...no romance there. as far as hinata goes, naruto has acknowledged her and all the rest of his comrades for what they are doing/have done for him. shes done except to cont the pairing war, though its seems about 95% clear minato didnt jsut ask naruto that for any reason...he could have asked his son a million things..like whos your friend? hows the war going? hows kurama? what did you think of mom? glad to see you? no, he asks if sakura is his gf.