This sounds more like half way between a brag and a 'I have cyber sex with girls online' thread.
If she is going out of her way to do anything involving you, she probably likes you. I don't see the mixed messages at all? She said she liked you and you 'did it' although it was online... so thats... kinda lame.
Shes at school though. How old is she bro? Are you too old for her? Don't be a fucking pedo if you are. Otherwise go for it.
Perhaps she was interested in a guy at the time, then she realised she'd rather have you? Perhaps you used some SS on her which had a time delay.
Straight out of the layguide:
"The time delay. Ross Jeffries: "Some women, for whatever reason, have a "time delay" effect; the patterns might not appear to work, but an hour or 3 days or even 3 months later, out of the blue they want to bang you. This "time delay" can be an x-factor that can make responses seem a bit more unpredictable.""
She seems to be interested, now the balls in your court to bed that ho. I'd like to see a follow up to see how it goes
Just to re iterate: IF SHE IS TOO YOUNG FOR YOU LAY THE FUCK OFF. This isn't about preying on little girls.
peace.