***Urgent - loss of h1b status, impact on spouse h4 EAD

[jobas2007]

There is a loss of employment due to which is loss of h1b status, but have GC EAD that has not been used.  In that case if wife is working on H4 EAD, does the loss of h1b status invalidates the H4 EAD?

If thats the case further, if spouse has GC EAD, should she switch to GC EAD before the principal applicant can get a job (which could either be in H1 or GC EAD)? and if once wife uses GC EAD, it is implicit that only option remains for principal applicant is to also seek employment using GC EAD only (and h1b option is lost)