So I started talking to this girl who was giving me multiple IOIs
She was asking about me, and we organised to go to this event thing where we knew noone and she said "You and I can stick together

"
Then she texted me twice at night (different days) saying "Hey how was your day?"
this all happened within a week.
The day we met up she texted me "Good morning! Hope this didnt wake you

"
We organised to meet at 12pm, but I was sincerely hung over from last nights shenanigans, so I called her and said "I cant meet you at 12pm, but we can hang out after the event. All good?" And she said that sounds good.
So we get to the event, I arrive late and she doesnt really aknowledge me. cbf going into details, but the event was a meeting, and because we were at different tables we could only talk during the break, where we got a long.
At the end she just left.
I felt 100% in with this hb10, and naturally I feel frustrated that somehow the opportunity was lost. I texted her after saying "You should have come out afterwards!" and she was like "Yeah I was busy. Nice meeting up with you

"
...WHY? Lol sucks so bad. please help me with what could have happened.