That's right in The Flash Season 1 Episode 18, Ray Palmer flies into Central City after his girlfriend, Felicity Smoak, drives the distance without him so they can get some assistance on ATOM suit. It appears he just cannot keep it up.
It's a good think Ms. Smoak is in town, too, because a very strange little woman has militarized a bunch of robotic bees and she's using them to hunt down former coworkers to kill them. Not very nice at all. You know what Felicity always wanted but never had? A nemesis. Well, she has one now!