Sienna Miller and Rhys Ifans have reportedly decided to "take a break".
Miller is said to be struggling with the prospect of settling down, while Ifans doesn't like the fact the actress going out on the town alone.
And tensions grew between the pair when Sienna was moved to tears over a picture of her ex-lover, Jude Law, kissing Rod Stewart's daughter, Kimberly, and Rhys' attempts to make her smile backfired terribly.
A source said: "Sienna and Rhys have been rowing a lot lately.
"He�s sensed that she isn�t quite ready to settle down and has been getting quite jealous and possessive, especially when he found out she�d partied with her ex Matthew Rhys recently in LA.
"Sienna only accepted his proposal on the third time of asking because she really loves him and didn�t want to lose him, despite feeling a bit unready for marriage. It all came to a head, however, when Sienna literally burst into tears over pictures of Jude kissing Kimberly.
"It really took her by surprise because she no longer has feelings for him but it brought back a lot of heartbreak.�
"Rhys can always make her laugh and tried to do so this time by singing Kimberly�s dad�s tune Do Ya Think I�m Sexy? while performing a joke striptease.
"This time though it didn�t work and Sienna became really irritated.
"She wasn�t in the mood to laugh and just wanted Rhys to take things more seriously.
"That really got through to him and they sat down, had a heart-to-heart and decided the bickering had to stop and they should take a break."
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