I tend to agree with TG. The current situation may not be perfect for her but it definitely suits her needs much more than yours or the family's needs. I understand you wanting to repay her patience with your depression. Just don't be surprised if nothing changes substantially unless and until you declare you're now even and are moving on. She knows you're not going anywhere for the rest of the year.
I am the same way and that's what got me into problems in the first place. I knew things weren't good with BF but he never complained so I just let things go on as they were. Same thing with my unemployment. I'm being lazy about it because there's no pressure to do otherwise. I know I need to change but it's difficult to change after so many years. Not an excuse, just trying to explain that I see how she can act the way she's acting.
If you love somebody, set them free. http://tinyurl.com/2empx2g