His answers only made her more frustrated. He didn't get to decide how she looked at the situation, or how she felt about it. Being a stalker wasn't always stealthy work - it was clear he had no idea what he was talking about.
"Maybe if you learn how to approach people like a decent person I'll take you up on it," Claire shot back, waiting for him to walk away. He was cute, to be fair, but she wasn't going to reward his questionable behavior by agreeing to go with him so easily. She'd be open to changing her mind if he was open to seeing things her way.