Eddie Griffin and his new wife had ZERO plans to get married on the fly in Vegas last week -- his wife tells spoke to reporters: "We just woke up and decided out of the blue ... it was time to tie the knot".
Griffin's bride Nia Rivers tells us, it came out of nowhere on Thursday -- all of a sudden, they couldn't go any longer without being married ... so the couple beelined to a Vegas wedding chapel that same day.
