The golden couple met while filming romantic comedy Alfie two years ago--but the Cold Mountain hunk has become increasingly disapproving of his fiancee's party-loving lifestyle, prompting Miller to feel resentful of his protectiveness.
However, Law remains keen to set a date for their nuptials but the Layer Cake star, 23, is stalling on making a lasting commitment to her older lover--preferring to socialize with Motorcycle Diaries heart-throb Gael Garcia Bernal instead.
A friend of the couple says, "Sienna is having serious doubts about this wedding. Jude is becoming very disapproving of her partying while he's away. Jude no longer seems to be the man Sienna once thought he was.
"They've been apart for weeks on end and Jude has become very protective. He is desperate to set a date for the wedding but Sienna is telling pals she needs more time."
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