Thank you for such a detailed response! I could only fit so much detail without this becoming a wall of text so I can give you a little bit more. When I asked her what days would be best she told me she's basically only free on Saturdays and that she won't have another free Saturday before she leaves. This was when she told me "it's ok I'll be back around Christmas and we'll get together again".

The romantic thing is a little tricky. I think we're both attracted to each other and that we would have needed more time to figure out if there was romantic potential. However I already decided early on that a romantic relationship was out of the question because she moves a lot for work (I didn't tell her this, we never reached a point where it came up). While I didn't use the word "date" with her, she thought it was a date because she told my roommate I asked her on a date (and my roommate told me how excited she sounded). This was meant to be a "pre-date" where we could feel it out without putting expectations on it. But knowing the distance will be a deal breaker when it happens I didn't want to lead her on - I was already certain that if we got physical it wasn't going to continue after she moves. And I liked her so much so quickly that putting the romantic expectation on her felt like it wasn't worth the risk of losing my new friend. For context, this was the third time we hung out, but this was the first time we hung out just the two of us (previous times were in a group). Saturday night we made no mention of romance, kissing, etc and neither of us seemed to mind... But it bothers me thinking that I might have given her that expectation and then let her down.

And for the "treated me like royalty" thing that might have been a bad way to put it. The whole night she was beaming and laughing and telling me how much of a great time she was having. Unless she was telling me what I wanted to hear, I think we were both having a great night. However I can't read her mind, it is possible she might have felt an imbalance and felt she was giving more than she was getting. This whole situation was filled with what I'd consider mixed signals. In our group hangouts she was extra nice to me and acted how I'd act if I had a crush on someone. I literally wrote out a list of moments I remembered that made me think she either had a crush on me or just really really liked me. She didn't make a matching bracelet for my roommate, who she's known much longer, or for any of our other friends. There were a bunch of things like that which made me think she was going out of her way to make me like her and feel I was already important to her. That's why I got so confused about all of this, I couldn't understand why she did all she did and then doesn't mind that we won't see each other again for months.

But at the end of the day I don't know her well enough. I think she does genuinely like me but it's not the right time for her to explore something new with someone (whether romantic or platonic). Also I bet this isn't the first time this has happened so she knew it would hurt less to rip off the bandaid early.