Probably the truth, but also don't be surprised if she isn't overly eager about cashing that rain check because
DevilSummoner posted...
maybe don't give one word responses lol
You're not exactly coming across as being interested, and while that can be fine if you know somebody better and they can just chalk that up to your texting style, if most of your interactions to date have been through text, that's the main impression she's going to have of you. If you're interested in this girl, show a bit more enthusiasm.