At this point, since posting this thread, we've been talking and have come to the conclusion that she's going to move her essentials out of her apartment and into my home for now, and spend some time away from her situation to process everything and decide what she wants to do.
At this point, her options are:
She gets him out of the apartment and we start over like a normal dating couple.
She gets out and either rents with another friend and we start over like a normal dating couple.
She gets out and moves in with me, which I usually I have a 6 month to a year rule of thumb that I'd be breaking to make it happen.
I think the first two options are by far the healthiest, but at this point, I just want to see her free from her crappy situation as soon as possible, in whatever way necessary.