Homewrecking Sienna Miller & Cheating Balthazar Getty Split?

Homewrecking Sienna Miller and cheating husband & father Balthazar Getty are possibly over!  Miller was spotted with a mystery man outside the Cow Pub in London a couple of days ago.  The couple seemed cosy and were affectionate, laughing and then taking off once they noticed the paparazzi spying on them.

According to reports, Balthazar is stalling on divorcing his wife Rosetta and he's apparently unhappy with Sienna's hard partying ways since he's a recovering drug and alcohol addict.

As well, Balthazar and Sienna were having disagreements on where they should live.  Sienna hired a real estate agent to find the couple a place in London but Getty wanted to remain in the US to be near his three children.

It was also rumored that Sienna was pregnant with Balthazar's love child – however, that's not for certain.

An insider said of the couple, "They had such an animal attraction in the beginning.  Now the dust has settled, there are a couple of things they have been rowing about."

Hmm, maybe Balthazar is realizing that the grass isn't always greener on the other side.  Hopefully the man does right by his kids and his wife.

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