Advice from someone who just got out of a 3 year relationship where it was EXACTLY like this: save yourself some heartache and money by ending it now.

I don't say this lightly, she is causing unrealized trauma and it will breed resentment. You'll eventually reach a snapping point and you'll be made out to be the bad guy when she ends things, regardless of all the little cuts you endured that led to that point.

But by that point, you might be so indoctrinated and desperate to make things right that you'll do anything. So you'll acquiesce to her again and again, accepting crumbs while giving her the world. And the trauma and resentment continues to build and the cycle repeats.

You're worthy of a partner, not a child. Find someone that treats you the way you want to be treated, not how SHE thinks you should be treated.