<human>: I've been texting with this girl I met online, she lives here in GA, she seems really cool, etc. As part of what we were talking about she sent me some pictures and, to just put it bluntly, she looks very different than I thought from her online profile. I'm not attracted to her at all. I hope that doesn't make me shallow, but when you know you know. It's not that she really misrepresented herself online, I guess it's that her photos were so ambiguous that I just let my imagine fill out the rest.

Anyway, the issue is that I already asked her out, we're planning to go out on a date tomorrow night. I'm wondering what the polite thing to do here is - should I cancel (making up an excuse obvi) or do it and then cut it off after that?

I guess the risk is that if I go out with her, I might be leading her on, but if I cancel on her after we've already made a plan I would just feel like a major asshole. What's the proper thing here?

Can you give me the gist of the text in a nutshell?
<bot>: What's the politer (or less asshole-ish) thing to do - cancel on a plan, or go out with someone you know for sure you don't want to go on a second date with?