How would couples get married in the afterlife? Wouldn't it be unnecessary, exclude procreation duh?

I've always wondered this peculiarity - say there's an afterlife - yet they're the only two people in eternity - or maybe they get a deity as a third wheel, who's present some of the time or like a servant type of genie - then again why does marriage matter in that sort of heaven or paradise if they're the last two souls alive lol 😆 besides the deity.

How would couples get married in the afterlife? Wouldn't it be unnecessary, exclude procreation duh?
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