Sorry to hear about this (((((((avishai))))))).
If the Watchtower isn't revealed to be the charlatans that they clearly are in their interpretations of the bible and their now policing their blood issue there will continue to be many more victims of this cult.
I can understand why your cousin would give into signing a NO BlOOD document since many people who fade from the JWs, are still foolish enough to believe that it is 'The Truth' unstead of a concocted lie. They have to be exposed completely, not just on the blood problem.
Thinking of you and your cousin, avishai. Hoping that she pulls through.