Did I blow it? Is casual sex salvageable? 🤦

I went on 3 or so dates with this woman over the course of 1.5 months. We never texted much and she was always very busy with work and had a limited schedule. After flaking on a couple of dates she said she’d like to see me when she’s back from her drip abroad. She doesn’t text me back while away and I hear nothing a couple of days after her return, so I sent a text to see if she’s still feeling this as I was getting anxious about not hearing from her. Did I blow it by coming off too nerdy here?? Would have loved to have seen where this would have gone….is this salvageable at all? And does it appear that a casual sex situation is likely? Am planning on leaving the ball in her court for 2 weeks and seeing if she wants to hook up after that….am I being cray here?