What would you say to your own children if they lose a spouse after a couple of kids and 10 years of marriage?
(Although Joseph Smith, in Teachings, did comment that the practice of marrying immediately after the death of a spouse was disfavored.) What's never been explained is how remarriage doesn't conflict with the notion that a prior sealed party is "married for time and all eternity" to someone else.
I am currently serving as Bishop, and find myself at a loss when confronted with these questions by my priest-age young men and other members.
Members of The Church of Jesus Christ of Latter-day Saints can be divorced.
This holds true whether they were married civilly or in a temple.
27 And he took the cup, and gave thanks, and gave it to them, saying, Drink ye all of it; 28 For this is my blood of the new testament, which is shed for many for the remission of sins.
29 But I say unto you, I will not drink henceforth of this fruit of the vine, until that day when I drink it new with you in my Father’s kingdom.
Some of these certainly could imply that masturbation under some circumstances could be sin.
For instance, if masturbation is used as a way to deny sex to your spouse, that would be destructive and go against the 1 Corinthians 7 principles Paul describes.
However, they may also have their temple marriage/sealing canceled.