Maze Runner actor Dylan O’Brien, once admitted to having a celebrity crush on The Fifth Wave star, Chloë Grace Moretz and now it looks like they're dating! According to Extra, O'Brien was spotted on what appeared to be a date with Chloë in L.A. A source told Us Weekly, “They were at Nice Guy for dinner, just them two, and then came out to Avenue.” In 2011 at age 19 O’Brien told Hollywire he had a crush on Chloë after seeing her in “Kick-Ass.