What was plaguing Barry's relationship with Iris?
That was revealed on The Flash Season 4 Episode 2 as the scarlet speedster went up against a dangerous meta who could control technology.
This also meant Cisco's changes to Barry's suit put the hero in a lot of trouble.
Meanwhile, Gypsy went all out for her date with Cisco, but she was left unimpressed when his work kept them apart.
Did Cisco make it up to her?
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Paul Dailly is a staff writer for TV Fanatic. Follow him on Twitter.