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As expected, Kate Beckinsale and Len Wiseman's marriage isn't on the up and up. In fact, there's not much of a marriage left.

People magazine reports that the couple has been separated for several months, but they've maintained a civil relationship.

"They are still friendly and spend time together in L.A. when Kate is there," a source tells the mag, adding that "there has been no drama. It's just not Kate's style. They have both had complicated schedules and have grown apart."

Rumors of marital strife began to make the rounds when Kate was photographed without her wedding ring on in the summer. Speculation has reached a fever pitch over the last few months, though, as Len was seen cozying up to 24-year-old model CJ Franco, all while not wearing his wedding ring.

Kate, though, isn't sweating her estranged husband's new relationship.

"Kate is not dating and only focused on her daughter and work," the source said. The couple has no children together but Kate has a 16-year-old daughter, Lily, with Michael Sheen.

Kate and Len met in 2003 while working on the first "Underworld" film together (Kate is currently filming "Underworld 5" in Prague.) They married in 2004.

As for Len's new relationship, he and CJ "have a genuine connection based on a friendship," a second source told People. But he still has his stepdaughter on his mind.

"Len's primary concern in all of this is Lily," the source said. "He loves his stepdaughter and is there for her."