Complex #5 - progress and throwbacks

[Complex]

So since we still live together and nothing has changed in our situation except of that a R just doesn't exist anymore I start to feel "bad" spending our money. I'm reasonable but I needed some new stuff, clothes and college things etc. She is basically paying the morgage fully. I don't make much money still. Although I started a couple new jobs/extending hours in my other job that will bring home at least a few more hundred up to a thousand dollars home a months. But she is still the breadgiver.

I know she's the one who wants out but I think I should acknowledge that she still supports me? The whole thing makes me look "weak" and not attractive bc she's above me socially ..and will be for a long time to come. I could never compete with her income, it's just way to high and if she goes back to school it'll be ridiculously high. I know it's incredibly important to her that I am going back to school, catching up a degree here...but it's far away, at least 4-5yrs. And my income level will probably always be lower than hers.
I'm working really hard on myself tho. She must notice. I have to become financially independent either way, but I know this is an important factor for her. Her mom leaked that W is worried that I won't be able to support her when she's going back to school or if we would have children. Its worrying W significantly. It's one of the reasons she doesn't believe in us anymore.
I mean love isn't about money, but I understand her. And she is who she is. She's not focused on money, but she wants to be safe and have a supporting husband.

So should I really feel bad about spending, if I spend very reasonable (I am very reasonable with money in general)? My financial situation isn't sth I can change over night, so i can only show her I'm at least taking action right? But in her eyes it'll probably be too little too late!? Is it ok to genuinely thank her for her support?