TrishARoo is wrong. I am sealed to two lvinig women, but married to only one of them. A lvinig man can be sealed to more than one lvinig woman, but he can only be married to one woman at a time. If he divorces and remarries, he can be sealed to his new wife without  breaking  the sealing to the previous wife. His ex-wife and the first presidency have to approve this. Actually, IIRC, the ex-wife only needs to be notified of this, and can choose not to respond of the notice.I don't think in the real world you will find this happening  continually . I suspect that more then 2 or 3 times is extremely rare.