There are three options for you here.
Generally she is:
1- not interested (very rarely if your game is good and "The conversation seems to be going well" as you say)
OR
2- she is just saying it playfully
Option 1- Pawning. What mystery refers to opening a lot of sets and just combining them or just using of the set as your safe set and you can go to them everytime you feel like rejected.
Option 2- Just eject. I believe if she is asking you weren't you supposed to go that you didn't did so well in your game because I have never had times when I'm having a good convo and the girl asks me that so best just move on.
Option 3- Now this is really rare but girls sometimes do that. They will just be playful and say it just remind you. In that case you just say:
PUA:"Yes you are right and you are in big trouble for keeping me away from my friends!!" said playfully back of course
