<human>: Hi all! 

This guy (we'll call him Stan) allegedly saw me through the window of the dining hall and thought I was pretty. He called his friend (who was inside, sitting near me,)  who approached me as I was leaving and said "hey, that's my friend Stan, he thinks you're beautiful." I spotted Stan, who waved through the window. Friend-of-Stan indicates that Stan would like to say hi to me outside.  I say thanks and, as I exit, I figure I may as well chat with him. We chat a while, he compliments me a few times, whatever. I mention I'm leaving for spring break and he says jokingly "aw, I'm gonna miss you!" And (here's my mistake), I offered him my number. 

I'm not totally oblivious and I realize Stan is interested romantically. The issue is, I'm really not. I consider myself asexual - I'm not interested in all at kissing, cuddling, flirting, or any of that. But I failed to mention any of this (I didn't know how to bring it up) and I implied I was interested by giving him my number. This wasn't intended that way; whenever I'm making a platonic friend, that's what I do. My brain reverted to "making friends" mode and I treated him how I would treat anybody with a platonic conversation. The issue is, this conversation was not platonic so I came off as interested. 

I'm pretty sure no one flirts with a girl who DOESN'T want to cuddle, kiss, and be romantic. I just don't know how to tell him I'm not looking for a relationship without seeming like I'm backtracking, because I definitely gave off an "interested"  vibe.

Can you succinctly summarize the text in 1-3 sentences?
<bot>: I was having a conversation while he was clearly flirting and then I gave him my number. I'm not actually interested, but I don't want to look blatantly two-faced: it was an honest mistake on my part