Should i break up with my girlfriend after 7 years?

I lived with my girlfriend for over 4 years now and been seeing her for over 6 years, but the last year or so we have become more distant and the last time we had proper sex was like 7 months ago. Within that period she told me she wanted to break up i didnt take it too well but we still living with each other, being just little more than roommates. We talked about our status, but things are so unclear and i dont want to be pushy.
The whole time i have been with her i was and still am still a student now doing my masters, she is working but we have been financially just above the water. I love her to death but i feel like she deserves more and i do to.. I have been completely 100% faithful and do whatever i can for her with the budget i have. But she is always hinting that she wants/needs more. She always goes out with friends and never ask me to come along, cause she says we are always together which i get, but still it does disturb me sometimes.. But the thought of her and me being with someone else makes me sick to the stomach.. I know she has also been faithful, with the occasional flirt but never serious cause she sees that girls been flirting with me too, but never visa versa.

What should i do? how to advance from here.. Perspective from someone not in our circle would be greatly appreciated.. Thanks