You text her, she said she was busy, next week is better. You text her again asking for a specific day next week. Perhaps a, "cool, let me know." would have been better.
Question: What happen to slow and steady?
The ball was clearly in her court and you jumped the net and played it again. Hard to say what's she's thinking. Perhaps she doesn't know what day next week or she's annoyed you're pressuring her right out of the gate.
Beyond that don't dwell or text her again, just move on. Water off a ducks back. Don't allow her actions to dictate yours. Who knows what she's thinking? She could be a total mindfuck or simply never got your text. Who cares? It's her move now, you did all the prep work, she knows there's interest there. Don't be a pest. Don't play puppy dog, just lock onto the next girl who interest you. Lesson learned.
I love that. Spot on.
Swingers?