With the wedding at risk, there was only one thing to do:
Go to Earth-X and cause some chaos for the new villains who looked similar to the characters.
That was the big focus of The Flash Season 4 Episode 8 as the group continued the effort to save everyone closest to them.
Meanwhile, the characters reacted to the surprising hook-up and wondered whether it would work in real life.
How did the two people who hooked up feel about it?
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Paul Dailly is a staff writer for TV Fanatic. Follow him on Twitter.