Jennifer Aniston might not be walking down the aisle after all. There are new reports that suggest Aniston's friends are strongly encouraging her to cancel her wedding to fiancé Justin Theroux as their relationship has taken a turn for the worst.

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Aniston's friends apparently "do not approve" of Theroux and say despite their almost three-year long relationship, he has never made an effort to get to know Aniston's inner circle and in fact, has even "pushed them away."

"Jen's friends think Justin is aloof. They say that he's never made an attempt to get to know them, and they think he has zero personality," a source told OK! magazine.

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"They think Justin is the coldest man Jen's ever dated. When he's been around Courteney [Cox], Chelsea [Handler] and the others, they say he goes out of his way to make them feel like outsiders," the source added. "He world is the only one he cares abut - he's never really embraced Jen's world, and it's caused a huge strain on her friendships."

Moreover, Aniston and Theroux have been living separate lives as the former Friends actress has been spending time on the West Coast while renovating her Beverly Hills home as Theroux has been busy working on new projects in New York City. Sources close to the couple say Theroux is relieved to be spending time apart from Aniston and that he's reluctant to move to California full-time.

"Justin is an East Coast guy who despises L.A. and the people there," the source explained. "He wanted space from Jen because she'd been nagging him night and day about a wedding. He had cold feel for a while, and admitted to friends that had he not gotten the acting role in New York, he might have ended the relationship."

Aniston and Theroux announced their engagement in August 2012.

Tags: Jennifer Aniston Justin Theroux