How often do freshman get with sophmoore's?

I met this sophmoore chick whos a day older than me and I am a freshman but we both are 16. She started IMing me and then gave me her cellphone number, then we just flirted just a little, shes give me some signels (i think) that she likes me, I said we should hang out sometime so she kind of took control of that and got our nuetral friend to go and my friend to go. So now its going to be the four of us. She always texts me first and stuff, and always replys awww, but the strange thing is I never met her in person. What do you think?