I wish I wasnt so naive to as fell into that trap. Its like my whole situation completely flipped around. Unfortunately this isn't a college town so all the housing is expensive.
I'm crossing my fingers I can rustle up some sort of arrangement with a bunch of other people needing room-mates. Living situation wise this would have to be the worst I have ever been in. If it wasnt for my girlfriend I would just find somewhere to bum around, but I havent convinced her yet to no longer feel any responsibility towards her parents.
On the plus side, it gives me one more reason to drop this state and get to NH.
Most people feel some sort of connection towards their parents, they're just wired that way. She's not gonna be "convinced", and you shouldn't try to convince her. IF (big if..) you ever hook up permanently,
maybe your criticisms will hold some validity. The only appropriate action for you, right now, is to accept their flaws and avoid contact. You can't make her choose, those things are her private business and parental relationships have to run their course. You have to stand on your own ground, and if she keeps going back for more, thats her decision.
But I will tell you, relationships where there is a rift between you and her parents can be difficult.
And as far as moving to NH, you should only do that for positive reasons, not because there are negative things to escape. Wherever you go, and whatever you do, it should tally up to what benefits your situation to the best degree. It sounds personally motivated, because it is. Be greedy with your life, its yours. If NH fits that description, fine, so be it. But you might be in for a rough time, if your current situation doesn't provide enough dough to get a floppy apartment in the cheap end of town. (all towns have cheap pads, save the bull for the naive). I wouldn't expect NH to be the land of milk and honey, your employment value is identical in both places.
These things go in steps. Get your legs under you, then think about your next move. Relying on the kindness of others has ways of backfiring in your face. In your own place, you pay your freight and answer to nobody. Sharing quarters with GF's mom, you're screwed if you get in a squabble.
I hope it works out for you, but my advice would be to work your ass off, save all your money for a month or two, and blow out of there.