As you are going divorce ,i do not think it is a good idea to involve with ex till it is finalized. i am not legal person, it just does not sound right. you might want to consult your lawyer. also i might be wrong, i read from your thread, that you are getting more financial support during this disability period. technically that is the money for your disability needs. you should be able to utilize that for uber. i do not understand expensive term , when the money is given by someone else .