Sophie Turner is opening up about the unexpected role she played in the demise of a celebrity couple’s relationship.

Appearing on “Late Night with Seth Meyers” on Thursday, the “Game of Thrones” actor recalled being introduced to Meyers for the first time at a San Diego Comic-Con afterparty about a decade ago.

Though Turner remembers that first encounter with Meyers fondly, she said the evening “went really south really quick” when she attempted to say hello to an unidentified actor at the request of her friend, who was a fan.

Turner hadn’t met the actor before, so she simply waved at him from afar. But it wasn’t long before she came to regret that seemingly friendly gesture. Moments later, she noticed “this girl looking at me, and she’s a famous actress,” at which point she decided to make an introduction.

Watch a clip of Sophie Turner’s “Late Night with Seth Meyers” interview below.