Also in the manga, when Arima tells Yukino all about his past, culminating with him telling her that he loves her.
Another small, but telling, moment comes early on. Arima has confessed his feelings to Yukino, but she is beating herself up about her inability to respond to him. She finds a way to tell him during a student council meeting by just reaching down and grasping his hand into hers.
Yin and Yang album. Tsubasa. That is all.
When Maho and Tsubasa start to like Yukino and even become her friends. Dawwww.
The fact that all of Yukino and Souichirou's school friends are supportive of Souichirou and help to repel his mother when she visits the school to take him.
Hiroyuki's grandfather and father figure has just died. He's in tears with thoughts of regret as he's explaining his grief to Miyako. Eventually she asks that she be the one to fill the place in his heart that his grandfather used to own. How's that for a confession?