Facebook messages between me and a HB9 in my year group:
Me: You changed my mind, I'll be out on friday
HB: yes!!!!! i knew you were liking the idea really woo woo
Me: Haha i knew you were a bad influence! Cya in *named club* to cause some more trouble in there
HB: Haha I'll try and not get us into trouble again! ooopps
Me: aha maann I got into enough trouble last week! scary times
HB: Oooh what happened!
Me: it's a looonng story

I'll tell ya if we meet in *named club*
HB: hahaa ok ill look forward to it!
Me: awesome, im expecting you to do a shot with me as well ;D
HB: Of course birthday shot!
- I couldn't meetup with her because I had to leave early. So the morning after the night out I messaged-
Me: Heyy sorry we couldnt do that birthday shot

had to go home early from the night out :/
No reply for about 2 weeks.
I messaged again saying "heyy"
No reply again.
Facebook tells me she's seen the messages as well.
Just wondering where I went wrong to get a complete freezeout like this??