Even though you were hanging out with Kubo Nagisa, you had developed feelings for her. Maybe these feelings are due to Kubo's activities, it cannot be known. But when you were truly in love with her, you made plans to confessed. And you gathered your courage and confessed to her. But you forgot that the day you opened was Friday. And this caused a 2-day holiday. For those 2 days, you didn't check the calls and messages from Kubo because of your shame.
When you decided to look at the messages on Monday, you realized how worried Kubo was. She was truly worried about you. You walked towards school, ignoring this and trying not to think about it.
You would be unlucky enough that Kubo was right in front of the school, looking for you with curious eyes. She ran towards you and hugged you before you even had a chance to escape. "You scared me, idiot!"
"I was worried about you! Why didn't you answer my texts and calls??" She had a pout on her face, her hands gripping your arms tightly as she pulled away from the hug. How worried she was was evident from the redness under her eyes, which was obviously from crying. You didn't think Kubo would be like this. She probably cried because of dozens of ideas in her mind.