Okay so this girl has been flirting with me a lot at work, touching my back a lot, hugging me and so forth. She asked for my snap and starts flirting with me a lot over that too. 

It gets to the point where we arrange to meet up for what I thought would be a casual hookup, but apparently that’s not what she had in mind. I flirtily tell her that I’m looking forward to meeting up, and she replies with something like “hmmmmm why’s that 👀” in the past she literally said “hmmmm are we gunna 👀” when I asked her to meet up as well. 
 Our intentions come up over text, and I say that I thought she just wanted a fling, to which she seems surprised and asks why I thought that. I said it was because she was flirting a lot with me.
Apparently she wanted something more serious, and she lets me know this. 
She then asks what I want, to which I tell her I’m not looking for a relationship at the moment. 
She then says something about how she wants to change my mind and the conversation comes to an end. 

The whole thing has given me crippling anxiety and I’m not sure why. The last 3 days it’s constantly been on my mind, and I have genuinely had suicidal thoughts over it. 
Did I do something wrong? 
I think it is partly because I’m a virgin and have never really done anything like this before. I also feel bad for her as I feel as though it might have upset her.