So your 'girlfriend' says...
That's a problem right there.
There are no garantees in life and at some point you need to decide whose life you want to live.
The one your parents planned, the one your girlfriend wants or the one you want.
Sounds harsh but if you want a career in aviation you need to start selfish then adjust. Not the other way round.
I've been an instructor for years and saw this type of doubt a lot.
Worked a lot with European students and I can't tell you how many of them had girlfriends and even fiancées break up with them because of their choice.
Had several break up with my students like the day before a checkride.
What you have now is a girlfriend and not a wife.
You'll need to make a decision what you want out of life and if she has a place in that life.
Here's how: make your own decisions and see if she follows.
Yes I'm still married to my first wife.
Alternatively find a career that allows you to fly as an (expensive) hobby.
I couldn't afford to fly as a hobby.
Still can't.
Good thing I fly as a pilot though.