I think you might be interpreting this wrong. The "let's do this again" after the date is meaningless, that's just a social nicety no matter how the date went.

I think you might be interpreting this wrong. The "let's do this again" after the date is meaningless, that's just a social nicety no matter how the date went. When you ask them out and they give an excuse and no alternative I would interpret that as she didn't think the date went that well. Which leaves you with a couple of options: If you also were ambivalent about the date you now have the option of just fading out while both parties save face. If you really liked her and think you'll be a good match you can try and rescue the situation by suggesting a better date (better being some combination of more thoughtful, more expensive, or more personal). You're a little on the back foot but in my experience a lot of successful relationships start this way so you're by no means down and out.