Blondie is right. Of course the Bible doesn't give those details; the Wastetower made it all up to encourage single ones to stay single (so they could find someone perfect in the New System), and to encourage widows/widowers to remarry "only in the Lord" so as not to disappoint the other spouse.
Can you imagine, in the New System, a few thousand years down the road a single Armageddon-survivor man is attracted to some woman. So he asks her to marry him. Her reply: "Sorry, I can't. I was resurrected."
Is this some kind of curse put on the resurrected ones, that they cannot marry? Can they at least be members of wedding parties for Armageddon-surviving couples? Imagine some faithful pioneer sister who really wanted to get married but didn't "for the sake of the kingdom" and served "whole-souled" as a missionary or in Bethel, all the while "waiting on Jehovah" to provide someone perfect for her at his appointed time when he makes all things new. She dies, wakes up in paradise only to spend eternity single. I wonder how many suicides we'll see in the paradise.
It is obvious that this discussion Jesus was having had to do with the heavenly resurrection, not earthly.