Ok, I feel like I should add some context to the situation.
I've been out with this girl 3 times. Every date went really well, in my opinion.
The fact is, she's WAY out of my league. I don't know how I've been out on even one date with her. On one hand, I'm kind of expecting her to say, "Thanks, but no thanks." On the other, I feel like this is a great opprotunity to be with a girl I would normally never have a chance with. I figure I've been doing something right and I don't want to screw it up by being my normal, insecure self.
You’ve gone out with her 3 times, and you’ve managed not to scare her off yet. Don’t start now. If you text her you’re going to be like the other dudes she’s dating right now. They are all probably sending her “how’s it going” or “having fun?” Or most disgustingly “miss ya”.
separate yourself from the herd abd don’t text whatsoever while she’s away. Just reach out the day after she gets back. Otherwise, no matter what you say you’ll come off as needy.
if you do text her, tell us what you said and how it was received