Justin Theroux only popped the question to Jennifer Aniston so he wouldn't lose her, but he never really wanted to walk down the aisle, Us Weekly reports.

"He had reservations at the time because they still hadn’t figured out where they were going to live as a couple. Justin was absolutely head over heels in love with Jen — and probably always will be — but marriage was never important to him. Marriage was always just a piece of paper to Justin, and he didn’t need it," a source dished to the mag.

It did, however, matter to the Friends star.

"Constant scrutiny of Jen’s personal life, including whether she would ever find her happily ever after, played a huge role in her marriage to Justin. It was obvious Jen needed more than an engagement or to be life partners with Justin. He didn’t want to lose her, so they got married," the source added.

But... were they even Mr. and Mrs. in the eyes of the law is the question. TMZ reports there's no record of them ever getting legally married, even though they had a "wedding" at their Bel Air estate back in 2015. It's possible they had a commitment ceremony but never made it official with a marriage license, which we guess would make this split a lot easier.

She certainly hasn't had the easiest time finding her happily ever after.