Without firsthand knowledge (whether the GF was/was not authorized to make the withdrawals on behalf of the deceased), how can the nearly-ex-wife claim the transactions were indeed unauthorized?
Seems to me the GF only has to claim she was given authorization. The decedent cannot refute the claim and, if authorization was given and not revoked (by notice to the bank), how can the wife assert otherwise?
"Remember no man is a failure who has friends." - Clarence (the Angel) Oddbody - It's a Wonderful Life