Please note especially the highlighted section:
According to the LDS "Church Handbook of Instructions," p. 73 of the 1998 edition, LDS contemporary practices embraces polyandry, not just polygamy: A living woman may be sealed to only one husband. If she is sealed to a husband and later divorced, she must receive a cancellation of that sealing from the First Presidency before she may be sealed to another man in her lifetime and later: A deceased woman may be sealed to all men to whom she was legally married during her life.
Thank you, its all confusing to me!