Liev Schreiber Unhappy With Naomi Watts?

Uh-oh! Are Naomi Watts and Liev Schreiber heading toward Splitsville?
Sources close to the couple are suggesting they are!
Schreiber is apparently so distraught over the current state of his relationship that he’s blowing off a press junket for his upcoming film, Salt, to get some time away from his family in Tahiti!
A rep for the actor is doing damage control says the claim is ridiculous, and explains:

“Liev went on a diving trip with a group of friends, and his boys are too young to go.”

We don’t know about this one…sounds to us like there could be some serious trouble in paradise!
What do U think?? Are these two on the verge of breaking up??
[Image via AP Images.]