Justin Theroux's ex would like Manhattan all to herself!

New York City stylist Heidi Bivens -- whom Theroux left after 14 years to take up with Jennifer Aniston, sources say -- "has stopped talking to Justin," a pal tells the new issue of Us Weekly (out now).

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"She doesn't want to know anything about him and Jen," the pal adds, "though she'd like a heads-up on any marriage or baby news."

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The insider adds that Bivens, 35, "wishes they'd leave NYC already. It's hard to move on, knowing they're in the same city."

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Theroux, 40, and Aniston, 42, arrived in NYC in mid-September. They are currently cohabiting at the Horrible Bosses star's West Village apartment and have often been spotted looking at home good together.

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