Jennifer Aniston and Justin Theroux split over a disagreement about where they should live.

The pair have revealed that they decided to part ways at the end of last year after two and a half years of marriage and sources close to them have claimed that a difference of opinion on where to live was one of the main causes for the break up, with Jennifer preferring Los Angeles, while Justin opting for New York.

An insider explained to ETOnline: ''He much prefers being [in New York] and that's been a major issue for them for a long time.

''Justin has a very diverse friend group, and he likes that they're not all 'in the industry. He's friends with people in the restaurant world, writers, comedians, artists, tattoo artists. It's an eclectic group and he doesn't have that type of network in LA.

''Justin can hop on his [motorcycle], walk in the neighborhood, hang at a bar and all that without being bothered, but for Jen, the paparazzi are all over her.

''He really wanted her to be comfortable [in New York. He even negotiated with the paps to make a deal that they would only shoot her once per day and then leave her alone. He also agreed to move out of his apartment, which he loves.''

''She just never really could get settled in, she wasn't happy [in New York. He was bicoastal, she was not.''

The source added that the pair fought to make their relationship work but were ultimately unsuccessful.

The insider explained: ''They really were a great couple. And they cared a lot about each other. Justin was always really protective of her. They both wanted this to work.''

Justin, 46, and Jennifer, 49, announced their split this week, following increased speculation about the state of their marriage.

In a joint statement, the former couple said: ''In an effort to reduce any further speculation, we have decided to announce our separation. This decision was mutual and lovingly made at the end of last year. We are two best friends who have decided to part ways as a couple, but look forward to continuing our cherished friendship.

''Normally we would do this privately, but given that the gossip industry cannot resist an opportunity to speculate and invent, we wanted to convey the truth directly. Whatever else is printed about us that is not directly from us, is someone else's fictional narrative. Above all, we are determined to maintain the deep respect and love that we have for one another.''

The couple tied the knot in August 2015 in a secret ceremony at their Bel Air, California home.