Dear DC,
I can't imagine the horrible pain you must be experiencing right now, I'm in shock right there with you.
Once the reality of this sets in you are going to need a whole new set of skills to deal with this and they won't be handed to you easily. Dig deep for that strength you have inside and you will be able to get through this.
DC, I hope you have support from family and friends close by? Even with that help you may want to try to find a women's and or disability advocacy group (s). They may be able to help you find the right legal assistance. Since he is leaving you high and dry you will need to fight for your rights. I don't know your laws there but generally spousal support is granted in cases where there is a disability.
Please be gentle to yourself, you are a kind loving person and I am very sorry you are going through this. Remember we are all here for you.
Big hugs
MsL