Nensu smiled small at Midoriya’s uncertainty, but then she kept her hand in his own, merely to send her own waves of comfort, and vice versa. It would be quite obvious for anybody to assume that there was something between the two students, just by witnessing this action alone. But, honestly, at this rate, Nensu didn’t really care on what they saw and assumed; Midoriya was there to provide the security that she needed; that only [i]he[/i] can give her. 
He was standing next to her during the whole closing ceremony, and admittedly, she thanked him for it. With All-Might having to place the medal over her head, Nensu titled her head forward, in order to take it. 
“Thank you, Mister All-Might”, she softly said, in thanks of receiving such an award.