I think being in the financial position you are in is making you oversensitive. You seem to be perceiving her loving act as some sort of charity - something which diminishes you.
I understand that kind of thinking. I have never had much money and it is sometimes very hard to receive and still feel self-respect. It's called false pride, and unchecked, it can put a wedge between you and anybody who tries to get close to you.
But one thing I have learned over the years is that people love giving, especially to someone they love, and any idea I have that accepting these gifts of love makes them better than me, is coming from my own insecurity and feeling of unworthiness. Being able to receive is probably one of the big lessons of life.
Right now she is probably feeling rejected and misunderstood. If you can open yourself up and learn to accept her gifts of love as just that, You will be able to remove the wedge. So she is able to do things for you more than you can for her right now - so what? Somewhere down the track it will be the other way round, and you will have the pleasure of giving.
It's all give and take in the grand scheme of things - and don't forget there is a lot you can give that you don't need money for. Give her the gift of love and appreciation, and she will feel loved. Good luck!