This is the only saving grace. She says a lot of shit, but unless someone actually does it for her, she isn't going to do anything but cry and piss in her attic. Her IQ is barely above Cobes', and she has no motivation to do anything. Let's not forget she has no money to travel back to Casper, let alone have the mental capability to go to a bank and ask for a house credit. I think it's just sad BPD whore talk. Unless someone pays for it, and gives her the keys, she will never do it. That being said, I 100% believe she would take a one-way trip to Casper (if it was paid for) and be homeless, just to manipulate the boy into letting her stay in forever. That was her plan this time and it failed, I'm glad the boy sent her packing back to fucking Virginia Beach. I'm still waiting for the inevitable pregnancy arc, though.
That whole arc has been based as fuck. Ignoring that SJC *maybe* caused water damage to the floor tiles with the garden hose, that was fucking funny as hell. It would have been even better if Mary was inside at that time, seeing all her shit get slowly flooded. Both of them should make content going around harassing squatters, trying to kick them out.