transferring from pc to ps4

I'm considering buying a copy of ARR for ps4, but I want to be sure I can play it on my psn account first. The problem is I bought it for the ps3 for my girlfriend, and didn't realize I was on my psn account when I set it up, so now her square enix account is linked to my psn account. Is there any way I can transfer her se account to her psn id so that I can have my se account on my psn id? If I cant play on my account it kinda defeats the purpose, seeing as the only reason I want to transfer is to make playing with friends easier.

Get a new SEN/PSN account probably your easiest and quickest way to get to play, as unfortunately your current SEN is tied to your girlfriend's SE Service Account.