While reading through her life on Wikipedia, I stumbled on an interesting quote by a friend of theirs: "Eleanor and Franklin were strong-willed people who cared greatly for each other's happiness but realized their own inability to provide for it." If FDR is an SEE and ER is an ILI, I would think that they would be able to do exactly that, but the quote as well as the various extra-marital affairs of potentially both of them suggests otherwise.