Keri Russell Is Dating Matthew Rhys

They’ve dodged relationship rumors for months. But now – unlike their spy characters on The Americans – the secret (love) life of Keri Russell and Matthew Rhys has been revealed.

PEOPLE has learned that Russell, 38, and Rhys, 39, are a couple.

Matthew Rhys: I Couldn't Pull Off a Fake Marriage in Real Life

Matthew Rhys probably wouldn’t make as good of a spy as his on-screen counterpart.

While his character manages to keep up a fake identity and two marriages on FX’s The Americans, Rhys says it’s something he’d never be able to do himself.

Black and White Was the Theme of the Night at the Fox TCAs

Keri Russell and Matthew Rhys: Are They Dating?

They play spies on television, but are Keri Russell and Matthew Rhys keeping a real-life secret as well?

The actress, 37, who recently confirmed a split from Shane Deary, her husband of nearly seven years, has been spotted looking close to her costar in New York City, where they film their hit show The Americans.

Keri Russell and Shane Deary Separate

Keri Russell and Shane Deary, her husband of nearly seven years, have split, PEOPLE has exclusively learned.

“They have been separated since early summer,” the actress’s rep tells PEOPLE. “The separation is amicable and their focus is on their children.”

Keri Russell on Home Burglary: 'The Police Were So Great'

How Keri Russell Stays in Fighting Shape (OMG Look at Her Abs!)

Keri Russell is abs-olutely fabulous.

The Americans star credits her “nerdy workout” – complete with personalized soundtrack! – for helping her stay slim and impressively toned.

Russell, 37, tells Women’s Health in its May cover story that she has “this really nerdy workout I do in my walk-through closet in our brownstone. I do a workout video and use my own music – whatever is inspiring to me at that time, like Alabama Shakes, the Cure, or Mumford and Sons.”