I get the sense she is being pushy about it because you have been wishy washy with your answers about it because you are afraid of what will happen if you say No.She played the victim perfectly, and was crying about it like I did something bad to her. She is pushy about living together, feel pressured with that.
There are things I'd want her to do, I don't go guilt tripping, manipulating and pressuring her about it. I talk about it like an adult.
This is what happens when guys don't give a firm, direct answer, women get annoyed and become "pushy" trying to get an answer one way or the other from you.
I suggest you take the lead, don't wait for her to bring it up and open up a conversation about what your thoughts are on that and if the answer is you don't want to do it then tell her that. Also be prepared for her to leave you, but that's life. Put on the Big Boy pants and talk to her.