Welcome back
I am so sorry to hear of your husband's illness problems, it must make things very difficult for you.
The first thing I noticed was that you openely say that he loves you but there is no mention that you love him? You seem quite secure and have a strong life line heading into the future and I get the impression that you stay together because you feel sorry for him sometimes. I am actually getting a really strange conflicting view, almost like the way a parent loves a child. I have no doubt that you will succeed and that you will survive, but you also feel a responsibiity for your husband, you know you are far stronger than him and this may explain the role revesal as you feel that you are in charge and the dominant force.
You need to have a good long hard think and make a list of priorities, what you want, your goals, your dreams, your wants and needs and then see how you can achieve all those things You know there is an element of playing with fire here, live emotions and real hearts. Nothing lasts forever but sometimes a good fire is needed to recharge the soil and to allow new seeds to sprout.
Cassie