More details have surfaced about what really caused the split between actress Jennifer Aniston and Justin Theroux. Word is their shocking divorce had to do with Aniston’s first husband, Brad Pitt.

Apparently, Theroux came across sweet notes that Pitt had left for Aniston during the days of their marital bliss. Post-it notes to be exact.

Jen Keeps Love Post-Its From Brad

While Theroux reportedly stumbled upon the Post-its two years ago, it is said to have caused a strain in their relationship because they were “sweet” notes. They are said to have had short messages like “You looked nice tonight” and “Miss you already.”

Aniston tried to reassure Theroux that she was completely over her ex-husband, but he didn’t buy it.

“Justin wasn’t thrilled,” an insider said. “Justin had moments of insecurity like that.”

Jennifer And Justin Call It Quits

Fans were shocked when Aniston and Theroux made a statement and revealed their separation on Feb. 15.

“In an effort to reduce any further speculation, we have decided to announce our separation,” read the statement. “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.”

The two married in August 2015, a little more than four years after they started dating. Fans know this was Aniston’s second marriage as her first husband was Pitt. They were married for five years after tying the knot in 2000.

Brad And Jennifer's Rocky History

Pitt and Aniston's split made even bigger headlines as it was reported he left Aniston for his Mr. and Mrs. Smith co-star Angelina Jolie. Those rumors served to be true when Pitt and Aniston announced their divorce in 2005.

While Pitt and Jolie were an official couple shortly after, they didn’t get married until 2014. It was clear the two were a couple considering they announced that Jolie was pregnant with their first child in 2006.

Pitt and Aniston’s divorce had only been finalized a couple of months before. Interestingly enough, Pitt and Jolie announced their own separation in August 2016.

It has been said that the end of Aniston’s marriage with Pitt played a part in her wanting to marry Theroux.

“Jen has struggled with the perception that she is this pathetic woman after the divorce from Brad,” added the source. “It played a role in her wanting to marry Justin.”

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