<human>: Can you give me the gist of the text in a nutshell?

New here - just looking for some advice. Living in NYC, been one of those ultra-career focused people here who became pretty successful and now have the work life balance I dreamed of, finally looking to settle down and be in a serious relationship.
I met this person about 7 months ago and have been pretty much inseparable since. Fell into a relationship pretty fast.
She has become very vocal about hating NYC and even little things like asking her what neighborhood she was in when checking out something with friends, she becomes very defensive, and instantly jumps to "I know nothing about this city, I have no clue where I was". At first I sort of blew it off. To add to this, where she lives she has had problems with the apartment and it turns into a "everyone is against her sort of thing". Almost everything that happens in her day is turned into something that makes it seem like she has the worst life and it gets her anxious to such a point where she has poor sleep for days on end. I then recently found out she used to be on anti-axiety meds, but that she and her doctor said she "did not need them anymore".
All of this is getting very draining, and I would love to let her know this is really making me question a lot of things - but unsure how to really bring it up. I have always had this thought that you do not truly know someone until you have seen them through all seasons. I question what she would do when real serious life things happen and she needs to deal with them.
Anyways, advice on how to talk about all of this would be welcome. Thanks.
<bot>: GF anxiety at constant high, and makes it seem like she is a victim to all. Making me question the future of this.