Agoraphobia doesn't work like this!
I don't know why I'm wasting my time writing about this crap movie, but I can't bite my tongue. Agoraphobia literally refers to a fear of the marketplace or store. Most agoraphobics have problems going into public places, particularly if there are a lot of people there. Of course, the disease can manifest differently in different people. But she lets this stranger in her house and is all buddy-buddy with her, no problem, but then the stranger wants to open the door and look at the view, and the girl freaks out. No! Maybe that's some kind of mental illness, but it's not agoraphobia.
I have the disease and if you put me in that house I would spend a ton of time outside admiring the view. It's so peaceful. It's not a fear of "outside," it's a fear of people. Having a strange woman in my house is what would freak me out. Or even the doctor, and the mom, and the husband, and the best friend....That might be too much. The only time I panicked in my own home is when two delivery men came to deliver a treadmill. It was just me and them and I got very nervous. Other than that, opening windows or doors would not freak out someone with this disorder unless they had an additional phobia of the outside. And the doc was right that exposure therapy helps (although it's not a "cure," that's laughable. There is no cure.) But the exposure would mean putting her in uncomfortable situations and helping her through them. In this case, everyone coddled her. I've been hospitalized because of my condition and I was never treated like a baby. A wheelchair? Come on! Exposure therapy means you get up on your feet and you open all the doors and windows and you face your fears. Send her to the mall around Christmas time and make her buy something. That's exposure. Setting her up in a peaceful ocean side cottage...Ha! I wish someone would try that "treatment" on me.