I dunno man. It kind of depends how needy you were building up to this event. Have you consistently been pushing for a reply if she hadn't text back in an hour, 2 hours, 10 hour etc... ?

See we all get that insecure feeling wondering why someone hasn't replied if it's been a while. It used to drive me up the wall kind of nuts. Chances are they're just busy or something you know, despite your head throwing up all kinds of scenarios if you think about it too much. But if you give in to the urge to send another text, and another, and another, it just comes off as needy you know or overbearing. Sometimes people need space and can't deal with that. Were you like that during the time building up to this?

My advice would be to next time, fight the urge to chase for a response. When they do respond, then you big up how you've missed them or were eager for a reply. One message or two without a response is reasonable dependant on the time that has passed. If it is highly out of character for the person not to respond for a set period I may play it differently, everyone's different. But just try not to come off as needy as it's like a repellent to most