Account question PC/PS3

Guys,

I'm wanting to play the game with my girlfriend. I will be buying a PS3 and a copy of the game so she can play. My current account that I play with is on PC. My question is, if I wanted to play my account on PS3 when I'm not playing on my PC, would I need two copies of the PS3 game or just one?

As far i know if you wanna play it on your PS3 you need to bind a PS3 key to your account.
To be 100% sure i guess is best to contact SE and ask them about it.

As the post above mine states; yes, you will have to buy an additional PS3 copy to bind to your SE service account.