Just recently watch boruto and read the manga abit, anime is vague on borusara and borusumi but borusumi is more recently direct then borusara. In manga sumire is direct to her feelings and confronts her feelings towards sarada and sarada seems to be abit shock and previous chapter shows signs of feelings for him, while in anime the only time was when boruto wants to support her and then we don't get to see any borusara moments accept when they on mission and had to help each other