Ya know what? Maybe if you get to know one another (which JWS rarely do), things will change. Maybe she likes to play board games, or XBox, or hey, dance! You just never had a chance to try out those things.
Hey, and most men don't think to just ask - so do NOT beat yourself up for that! Don't get stuck on the 'good provider' stuff - if you have a problem with your vision, and life is tough - it's not your fault. Guilt is a relationship destroyer. Be the best man, the best person you can be, and if you can work as a team, there can be much love and laughter in a poor home. My Grammy taught me that - never did she guilt Grampy because he went blind, and they made it through the hardships by sticking together. It does not make a person 'less', to be sick - screw those who treat you that way!
Hmm, only you can know if there is and was ever that spark. Good marriages can be built, and love can grow. All you can do is give it a try, and see if you grow closer together.
xx
tal