Bingo-Player
Master Don Juan
i would have just done the aboveWhenever you get this, always agree and amplify. "Yes, I know what you mean and I think we need to dial back how often we're seeing each other. I feel like this is moving way too fast." Then stop texting altogether until your next date and become very unavailable in general. Watch her head spin off.
Regardless, this chick is feeling out her options and I wouldn't do anything more with her other than give her plate status. She clearly wants to play the field.