Ai o Torimodose! Honmei Choko de Onna o Migaku!! (E12)

Ōtani's non-challant "Gimme some valentine's day chocolates" makes Lisa jump with joy. But Ōtani still doesn't understand Lisa's feelings whatsoever. After Nakao explains to him how much effect a single word from him has on Lisa, Ōtani realizes what he did. When Lisa comes to hand him her crush chocolate, Ōtani says he's not in a position to accept them. Throwing the chocolates at him, Lisa says she doesn't care because that the crush chocolate is just a reflection of her true feelings. Could Ōtani's emotions be quavering? (Crunchyroll)