Ask HN: Relationship strain as an entrepreneur

My girlfriend and I have been dating for 3 years now. I am 21 and formally study computer science, but I've been programming and studying computer science, mathematics, and physics long before university was a thing.

My mind and my studies and my work have been a truly integral, and beyond important part of my life now for about 10 years. I fill up notebooks with ideas and sketches at an alarming rate, barely sleep because my mind is always going a mile a minute (which is fine for me), and devote my self to my own projects however mundane or useless because the process of learning and doing is so fascinating its crazy.

I have now been working on a project/startup of mine for the last 6 months now which I now devote all my time to, and that same exploration for knowledge and work, before that I was working on another for about 6 months, and before that I was paying my bills with freelance work.

So for the last year my girlfriend has been paying for most of our outings since she works, we both still live at home, so we don't really have expenses.

Unfortunately its gotten to the point where she is getting fed up with paying for things (which I completely understand), but she is asking that I now go get an actual job. I know I can as a programmer/soft eng, since I have been offered a few over the past months despite my age.

But I am feeling like there is no way I could possibly stop doing what I am doing but working on my own projects like this has become such an important part of me. I love her alot and don't want to break up, but I dont know how to get passed all this.

I know this has been a long post, but if anyone has made it this far and is still reading, and a subset of those readers has any kind of advice or suggestions, I would love to hear them.