I, personally, wouldn't want to stay in a restaurant where I was so humiliated. I'd order a pizza, get some beer and watch cheesy movies in my hotel room for the rest of the night!
Even if she is a desperate or needy person, that doesn't excuse Rick's treatment of her during their non-date. He needs to step up, be an adult, and message her where they were talking pre-date to say it wasn't going to work out, that he didn't feel and chemistry with her and he wishes her the best.
He pretty much ended a date and disappeared with no explanation. Now he's hiding from her and telling people she's desperate for him after a couple messages. I'd be confused/upset about what happened at the date - why someone I got along with well on the internet was so rude. I'd want an explanation.
But, I wouldn't call because I don't think someone who would act like he did would be worth the lame excuse anyways