Well, I think its a give and take situation.
My boyfriend had a money problem before and I help him alot with it by doing extra work and as long as I have cash, I would just give it to him no matter what and will cut down all my expenditure and well as his. (well, we made a list of things which we need and don't need and cut it down untill we could afford, then we will go back to the same routine if we are stable) and then now that he is well off, he helps me back when I have a money problem and when it comes to paying for anything, we take turns but don't really bother so much about it cause money comes and goes. Its just paper and its made to be spend and made to be collected like recycling trash.
So it depends on you. Do you love her, trust her and is willing to support her as a partner no matter what? If yes, than the money will never be an issue.
And if she really cares for you, she will be able to do anything for you and will offer whatever she has in the future just like what you are doing for her.
Never allow it to be just one sided as this is the 21st century. Its no more in the Victorian days so after she goes to work, she might pay you back. The most important thing is that as long as you love her and you know she loves you and also that you both trust each other. Take it from someone whom have gone through it.
