There’s not much I don’t love about Doom Patrol, but I’ll admit, for the show’s first season, I had a hard time getting my head around what Cyborg was doing there. To be clear, this is not a knock against Victor Stone.
Superheroes don't need love interests. But if you're a superhero on a CW show—the network well-known for teen dramas—chances are good that you'll have one (or more) at some point. Oliver had Felicity, Barry has Iris, Mick has his beer.