What is the first moment of 愛 relationship Nagisa-Tomoya?

あなた know that a major 愛 story in this アニメ is around Nagisa and Tomoya relationship. あなた also obviously know that in Chapter 22 Tomoya finally confess his 愛 directly to Nagisa and they start become lovers.

But I believe that there are some moments before it that shows Nagisa and Tomoya feel in 愛 each other.

So, I want to hear your opinion about the first moment seen in this アニメ that 表示する Nagisa and Tomoya feel in 愛 each other. あなた can mention the chapter which shows that moment and the reason あなた choose it as the first moment.

I 愛 the romantic plot shown is this anime, so I believe get some interesting moments in it with all of your opinion in this question.

Thank あなた for your answers. :)