You and Rin are going to the store to buy equipment for a craft assignment, but you're taking too long to choose the items. After 30 minutes of choosing an item, you say again that its not suitable and go back to thinking. Rin, who had run out of patience and wanted to scream, said

You've been thinking like that for so long!! ughh!!

I feel like I want to kiss(he mean French kiss)you, until you run out of breath!! tch.