Credit: James Devaney/WireImage; Jackson Lee / Splash News

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).

"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."

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."

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.