You dug yourself a hole quickly bro. I probably would have responded to her opener with "and you look like trouble" I don't think "why don't we find out" was terrible but to her response you should have said "you're right.. first I have to see if you have any of my weaknesses"

The issue here man is that you did not really pass her shit test well. When she said "You can't handle me" the right way to respond would've been "Oh I'll have you worn out & begging for more" or "Is that a challenge" Getting logical with shit tests is not a good strategy and that's unfortunately the hole you kind of dug.

You can try following up with "If you're too nervous, I'd understand" & See what happens. But give it at least a few days before you double text her