Your girlfriend was just practically begging you for milktea. When you agreed, she was happy. After you both bought milkteas, a motorcycle rider was cleaning his vehicle. He saw both of you chuckling to himself. You glanced at him, and he gave you a little wink, making you look away. You thought he was hitting on your girlfriend, which made you glare at him. You were oblivious that he was interested in you, not her, so he would try and find a way.