Ah, I didn't know about that. I like that we don't need to even be that sure that it was her, based on the fact that Phil hates effort and people way too much to acquire some kind of stand-in. Not even to shut down the speculation would he go to that kind of trouble.
Additionally, it would be way too clever of a move to be made by the same guy who put a ring on the female roommate he purchased for LARPing purposes when going from fake girlfriend to fake girlfriend would've been way easier and made him look more like a Chad (to his tards, that is).