<human>: Can you provide a brief overview of the text?

Throwaway because friends know my Reddit.

"Katie" and I been friends for five years and live on opposite coasts. She was supposed to visit me last week but cancelled last minute and didn't really explain why. A mutual friend mentioned (when I brought up what had happened casually) that Katie thinks I'm in love with her. I have no idea where this is coming from.

It's pretty simple: I don't have romantic feelings for Katie and am not sure where this is coming from! Part of the issue may be that I date women (so does Katie), but none of my other female friends have ever jumped to the conclusion that I'm in love with them. Katie and I used to flirt when we were drunk, but it's been years since those shenanigans, and I have no idea why that would be relevant to our relationship now, when it was never an issue then. 

My main issue is how do I address this with Katie? I really value her friendship, but I am not attracted her, and have no idea where she's getting this impression. Could the fact that we're both LGBTQ be influencing her perception? Since she's already uncomfortable about this, I don't want to make it more uncomfortable, but if there's a friendship to be salvaged I'd like to know.
<bot>: My friend apparently thinks I'm in love with her (I'm not). Should I find out why? What should I do after?