the fact you still think GA/DD are together throughout all of this is really disturbing. Why would Gillian go through all of this craziness? Why would she let people believe she is dating PM if she really isn’t– why would either PM or GA do that in fact. Her faking a boyfriend defies everything she stands for.

If you actually think about it, she did not fake anything. As usual, we can interpret things the way we want. If you want her to be with PM, you have indeed material to support your beliefs. And if you don’t, you also have that material. There was nothing in her behavior that screamed “this guy is my boyfriend”, to me, it’s actually the contrary.
I can’t deny there are things I can’t explain for now, but I’m confident we will get an explanation at some point, or a least a hint about what’s happening. And if she’s really dating him, I’ll apologize for giving you guys hopes for nothing. But for now, my Gillovny beliefs keep upgrading as I have actually very little reasons to believe she’s with another man.