In early December, Keri Russell announced her split from her husband of seven years, Shane Deary. We didn’t cover it because… well, I’ve always sort of thought Keri is kind of boring – unless she’s bumbling around The Mommy Wars, that is. Shane and Keri have two kids together – River and Willa. They seemed solid. All of the press I’ve read about Keri over the past few years was basically like “she’s really grounded and she lives a very normal life in Brooklyn with her husband and kids.” But apparently there was trouble in Brooklyn. And that “trouble” might have been Welsh dong. Yes, there’s a rumor going around that Keri might have been banging her costar in The Americans, Matthew Rhys. I love Matthew Rhys. He’s Welsh and he’s adorable. So… what happened?

Keri Russell is spending a lot of time with her “The Americans” co-star Matthew Rhys after announcing her divorce — sparking rumors the pair are embarking on a romance.

Multiple sources tell Page Six that Russell — who announced earlier this month that she and her husband Shane Deary have split after seven years of marriage — has been spotted “looking affectionate” with handsome Welsh-born actor Rhys, her on-screen husband on the hit FX show.

One source who spotted the disarmingly charming Rhys, who is single, and Russell recently sharing an intimate lunch at ABC Kitchen, told us, “Seeing the way they are together I could have sworn they were a couple. They were so touchy-feely, drinking and laughing.”

Another source tells us that Russell and Rhys have become such close friends they have spent time with their respective families.

Russell, 37, and Rhys, 39, are currently in New York filming Season 2 of “The Americans,” in which they star as Soviet KGB agents posing as a married couple. Their reps didn’t respond to repeated requests for comment.

In early December, Russell’s publicist confirmed her marriage to Deary — with whom she has son River, 6, and daughter Willa, nearly 2 — was over, telling People, “They have been separated since early summer. The separation is amicable and their focus is on their children.”

Former “Brothers & Sisters” star Rhys, who lives in Santa Monica, Calif., and will soon play Mr. Darcy in the BBC drama “Death Comes To Pemberley,” recently talked about his famously single status, telling UK newspaper Metro, “I am lucky in a way because I am still single — much to my mother’s fury — so I can embrace the gypsy lifestyle [of an actor] and enjoy it. Many of my friends now have wives and kids, and they find juggling the two incredibly hard.”

And he said in a 2012 interview, “My mother’s despairing. In the last year-and-a-half I haven’t been in the same place for more than six months . . . but, yeah, I do enjoy the single life. Also I haven’t met her yet, so . . . until then . . . ”

[From Page Six]

I didn’t know he was “famously single” when I started paying attention to him several years ago. Somebody – one of you, I’m sure – claimed he was gay. So is he? Or is he just a fun Welsh bachelor who has a lady in every port? Is he a gay dude helping his lady friend and coworker through a difficult time in her life or is he “the reason” his lady friend is getting a divorce? Very interesting.

Photos courtesy of WENN.