Father-of-two Liev Schreiber is doing what's best for his sons, Alexander "Sasha" Schreiber, 11, and Samuel Schreiber, 9, following his split from longtime partner Naomi Watts. According to a new Life & Style report, the actor recently moved back in with his ex-girlfriend to "co-parent their children under the same roof." "It's working well and the kids couldn’t be happier," a source recently told the magazine. "So Liev and Naomi are just hoping that it doesn't begin to affect their relationships." Since the Hollywood couple's 2016 separation after 11 years of dating, Liev, 51, has started dating much-younger pageant queen, Taylor Neisen, and Naomi, 50, recently fell for her former co-star, Billy Crudup, also 50. View this post on Instagram These are my #goldenglobes! Happy Mlk day! @showtime #raydonovan A post shared by Liev Schreiber (@lievschreiber) on Jan 12, 2018 at 10:25am Pst Now that the exes are dating other people, they're especially aiming to keep their co-parenting relationship strictly professional.