21 years later.... "Oh god.. Why?"

I am something stupid

Well, she did say to leave.

I think you’re ok. Maybe she was just being flirty, and you probably could have stayed and things may have escalated. But you avoided the potential for things to go very badly then or later and respected her request. For games to work everyone has to play. If more people refused to participate in silliness there would be less of it in dating. So kudos.