You are at class, as Teacher Akihiko is introducing the Three Eye Types and their meaning:

• 'If your eyes are Pink, you are inlove.'
• 'If your eyes are Grey, you are neither inlove nor heart broken.'
• 'If your eyes are Black, you are heart broken.'

Ryuzu aka your friend that's sitting next to you, whom is currently Inlove with you, looks over to your direction to see your eye type