Did she blow me off?

[890]

So there is this girl that I really like. I mean big time. I'm in grade 10 and she's in grade 11. I talked to her on Facebook and after like 3 hours of constant talking, I finally told her I had to go and asked if I could have her number. She said sure and left her number. I waited for the next day and I texted her. It's been 5 hours so i'm assuming she doesn't have any interest in me.
Also, it seems pretty clear because I see her on Facebook but she won't text me