Jennifer Aniston and Justin Theroux have been engaged for nearly three years now, but it looks like they just can't make it down the aisle together. This time around there's a new rumor saying that Theroux was left mortified after Aniston caught him having dinner with a mystery woman at one of their favorite restaurants in New York City recently.

Jennifer Aniston, Justin Theroux Wedding News 2015: Did The Couple Break Up?

According to RedBook Magazine on Friday, Theroux has supposedly been getting a little too up close and personal with a crew member from his hit HBO show, The Leftovers. The gossip blogs are saying that Aniston was in rage mode when she caught the two allegedly canoodling with each other.

"Justin was humiliated and embarrassed by Jen's crazy behavior," an insider said. "Especially considering the fact that their relationship is hanging by a thread."

Jennifer Aniston, Justin Theroux News 2015: New Report Says The Couple Is 'Growing Apart'

Meanwhile, according to Star Magazine on Friday, things have gone from bad to worse for the couple, who have allegedly been fighting for months now.

"Jen and Justin are in a terrible place right now," an insider reveals. "They are never together and even when they are together, they fight nonstop."

So far, neither Aniston nor Theroux have made any comments about the reports. Unfortunately though, they haven't set a date for their upcoming wedding, either.

Keep up with Enstars for all the latest news on Jennifer Aniston and Justin Theroux.

Tags: Jennifer Aniston Justin Theroux