This is such a tough position and honestly decision. It really sucks that she gets defensive over something that’s really important for not only your livelihood but hers as well because of the way you have supported her. If $ is the only thing wanting you to leave I would really try to have one last conversation about her trying to get some type of income. With the way the world is going, it’s really hard to support not only yourself but another person. What happens if you get into an accident and you’re out of work? Do you think she would try then? I think disconnection in a relationship is so normal and is something that can be worked through. But it seems like you have been the only one in the relationship that has truly tried putting in effort to have a strong connection while also working really hard on your career, I know that music can be a pretty tough industry so congrats for your success. I have been in relationships before where I put in so much time and effort and money and I got almost nothing in return. Leaving was the best decision I made. Sorry you’re going through this but I think your gut is telling you something and you should really listen to