Facetime deleted? Iphone 4s?

I have the iphone 4s and I have not jailbreaked my phone but FACETIME is goneee? I have synced my phone alot onto my computer so I can't even find it there?

Added (1). ITS NOT IN ANY OF MY FOLDERS EITHER

My aunt has the same phone and the same problem
You can't really fix it bt if you really want to facetime just go in messages or contact click on the person then choose facetime it will still work