Stop caring so much everything she says, most of the time it's non-sense, if you start falling for every little comment and such, she will feel like she has the burden of the relationship, that stresses her out.
When you first met, i can almost bet that you had your own life and you were leading , where you went, how you dressed, what you eat, etc; then suddenly little by little you started to do small things to please her, at first she received it happily, then she started being unhappy, woman dont want men that want to please them, they want to please, if you look for images of old kings, leaders etc, basically every man that has woman chasing him they go their own way to fulfill a mission, they never make their women their mission, they just tag along.
Basically, you are a man, act like one, it's about you not about her, you are the valuable one.