Been in that spot before.
I can nearly safely say, “It probably wont get any better.”
How old are the both of you? Dependingly, it could raise a bunch of excuses, but those are just that.
I’m sure you have laid down the “This is how I would like this relationship to work” conversation. In my relationship, after the same behavour for a series of months, I found it difficult to trust anything was going to last forever. That left a joint complacency in the relationship. It’s very difficult to recover from that spot. Nobody will ever trust or feel completely comfortable again, will they?
Question is..
How much do you love her? (love her because she is what you are used to, because she is the one, concern for her well being) That’s the only factor any answer can rely on.
If it is anything other than “She completes my soul” I would cut the losses now. Try and be friends. Move on. No responsibility to pay for her to have another life.