AITA For ditching someone who asked me out on a friendly hangout, which turned out to be a date I was supposed to pay for?

So this takes place several months ago and is about me(26M) and someone in my former friendgroup Kelsie(21F), it has nothing to do with breakups and such, just to clarify that, it's about the situation.

So I worked with Kelsie and multiple other people at a theme park during college, a few of those people became close friends of mine which is how I kept in contact with Kelsie after graduating(Friend of a friend type situation) and leaving that job. It is worth pointing out that I was aware Kelsie was in to me as she asked me out while I was still working there, which I politely rejected, at that time she took it well or so I thought.

That takes us to a few months ago, Kelsie messaged me about wanting to hang out, I responded with "Sure sounds fun, who else is coming?" And she named a few more people she had supposedly invited(Turned out to be untrue).

Well I went to the place she named and it turned out to be a fancy restaurant(I was expecting a bar or something) which I was wayyy underdressed for(Leather jacket, white v-neck, sneakers and jeans) I was met by Kelsie who went all out the whole little black dress, heavy make up the whole shebang, weird but alright.

Well we went inside on her behest, me figuring other people would join us later and we started chatting, had fun, ordered an appetizer and a drink, the usual, well no one showed up, when I asked she said they must have bailed so I figured no need to ruin the night. At the end of the night when we had eaten, we're talking desserts, mains, appetizers and plenty of drinks at this expensive ass restaurant she came clean about this being a date and wanting me to see her in a different light and so on, I rejected it once again. She is a nice and pretty girl but the whole naive, straight edge, christian, daddy's girl ordeal, I am a metalhead and into the whole tattoos, piercings, edgy type, you know? She is just not my type.

She was really sad about it and to be honest it was just awkward and silence and then the check came and she took no initiative to pay, so I just put my half on the table and said goodbye.

Apparantly she had brought no money, was expecting me to pick up the check(Which I would have done if it was a date to be fair) and I had "Ditched" her and it had turned in to a whole mess, in my mind this was her own fault, did she expect me to pay for a date I did not want in the first place? Regardless I ended up losing some mutual friends over it and had to migrate my mutual friends who supported me over to a new friendgroup, so I was wondering whether I was TA somehow and I am missing it, it has bothered me eversince?