But their patting themselves on the back for being good fans by way of approving her dating PM as if she needs their approval will never not be funny.

Let them do, then. What can we do? If anyone took Gillian’s tweet as a confirmation of a dating rumor, it’s weird and wrong. She had tweeted a picture of herself at the BFI a few minutes earlier. If she wanted to come out, she would have chosen one with PM.

This tweet was a call out for all of those sending her hate, not an authorization to ship her with someone.
It wasn’t adresses to one fandom in particular but to all of them, xfiles fandom who are sending her shit because there might be no xfiles and blame PM, Gillovny fandom who is insulting her for maybe not picking the right guy , Gillian’s fans who are pissed at her for her not being a feminist enough, all of them, all of those people tagging her, insulting her, dragging her friends into the midst. That’s what was her tweet. But in my opinion, it’s not because she tweeted that, that it suddenly became okay to tag her and PM saying they’re cute and they should get married.
There’s probable some balance to find.