Concerning polygamy, her answer is always that 1. it is no longer practiced, and 2. LDS has changed its official doctrine on it after further “revelations”.
As a woman, when I was a mormon, what struck me was when I compared Doctrine and Covenants section 132 with the temple marriage ceremony. They do still believe in polygamy even if they don’t
practice it right now. Section 132 is still doctrine. The temple marriage ceremony says this:
“By virtue of the Holy Priesthood and the authority vested in me, I pronounce you ______, and ______, legally and lawfully husband and wife for time and all eternity, and I seal upon you the blessings of the holy resurrection with power to come forth in the morning of the first resurrection clothed in glory, immortality and eternal lives, and I seal upon you the blessings of kingdoms, thrones, principalities, powers, dominions and exaltations, with all the blessings of Abraham, Isaac and Jacob [if living, he adds: and say unto you: be fruitful and multiply and replenish the earth] that you may have joy and rejoicing in the day of our Lord Jesus Christ. All these blessings, together with all the blessings appertaining unto the New and Everlasting Covenant, I seal upon you by virtue of the Holy Priesthood, through your faithfulness, in the name of the Father, and of the Son, and of the Holy Ghost, Amen.” ***
lds-mormon.com/veilworker/marriage.shtml
Now read D&C 132
scriptures.lds.org/dc/132 and see what the Everlasting covenant is. It’s polygamy. She’ll have a polygamous marriage in the Mormon heaven.
Which then leads to the question: wouldn’t the current Mormon church be “apostate” since they are no longer practicing it…and the FLDS is the true church b/c they are?

(You don’t need to ask your friend that.)
***As the LDS church has changed temple ceremonies several times I don’t know if this is the current wording, and to be honest, we left the church before being sealed in the temple.