@DC3 Momo and todoroki are the two classmates that got in on recommendation and they worked together in the final exam arc, however, todoroki seems largely indifferent to momo and momo largely seems to feel envy towards him more than anything else, wishing she was as strong, composed and reliable as him. Momo and Kyouka tend to hang out a lot, in the when the class splits into groups socially to talk those two are almost always together, Kyouka also immediately thinks "cute" when she sees momo, blushes extremely heavily when momos shirt breaks, and is honestly quite protective of her, shielding her in fights more than once despite momo arguably being the better fighter. i would say there is a decent chance they are implying a crush on Kyoukas part, however, there is no real evedance of it being mutual.