Wednesday July 16, 09:03 AM

Sienna involved with married man for months

By Splash Sienna Miller has been secretly dating married father-of-four Balthazar Getty for months, according to U.S reports.

Getty, whose youngest child is just nine-months-old, was reportedly introduced to Miller last summer by her ex-boyfriend Matthew Rhys.

"Getty and Miller hit it off as friends but became closer in the last three months," the New York Daily News writes.

"According to some, she used her past relationship with Rhys as a smokescreen for her romances with Getty, leading the press to believe she and Rhys were rekindling their affair.

"In fact, she and Getty are said to have been living together in L.A, for over a month"

An insider tells the News that Miller was not responsible for the breakdown of Getty's marriage to Rosetta Millington, which had been on the rocks for months.

"Sienna didn't break up his marriage," the source told the News.

"It's been in trouble for a year. The truth is they've quietly separated."