Recurring Dream -Sudden Disappearance

This happened like 2 or 3 times now
I was at school. Hanging out with my best friend as I have done every single day for the past few months, I turn around for just a second then I notice he's gone. I search the whole school for him. I never do find him (in all 3 cases I woke up without finding him). I search everywhere. It's as if he just disappeared.

You see, he's my very best friend and shortly before school ended he told me he would be changing schools and I never get to see him outside of school, he doesn't even have a phone. And we haven't spoken on Facebook in weeks, he hasn't even been on FB at all (that I know of) since then. It's as if he's "disappeared". Do you think this really is why I had this dream? I need some opinions :?