Don’t expect a Jennifer Aniston and Brad Pitt reunion anytime soon.

Following the news of Aniston and Justin Theroux‘s split, the internet has gone into a frenzy with the possibility of Aniston and Pitt rekindling a romantic relationship. But a source tells PEOPLE a reconciliation between the former couple seems highly unlikely.

“They haven’t seen each other in ages,” says a source with knowledge of Pitt and Aniston’s current relationship. “For well over a decade now they have lived totally separate lives and so not surprisingly, they have become totally different people than who they once were when they were together.”

Jennifer Aniston and Brad Pitt in 1999
| Credit: Brenda Chase/Online USA, Inc/Getty

Pitt, 54, and Aniston, 49, divorced in 2005 after five years of marriage.

“They broke up, and they did it because they had serious issues,” says the source. “They’re not stupid. They remember why it didn’t work.”

Despite the constant tabloid chatter over the years suggesting they never stopped loving each other, both Aniston and Pitt have completely moved on.

“They’ve been over each other for longer than they were ever together,” says the source. “It is such ancient history.”

And when it comes to the possibility of a new relationship, the source says their lives are simply too different from when they first met to make it work.

Jennifer Aniston and Brad Pitt
| Credit: Karwai Tang/Getty; Tim P. Whitby/Getty

“Now you add six kids on his side and each of them having their own assorted battle scars into the mix?” adds the source. “Forget it. It’s not going to happen.”

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And while Aniston and Pitt have remained friendly over the years, the source says two aren’t especially close.

“They aren’t in regular contact, beyond an occasional text back and forth to wish each other the best when there’s been a new project or big event,” adds the source.
Aniston and Theroux announced the end of their two-year marriage and nearly seven-year relationship in a joint on Thursday.

“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,” read the statement. “We are two best friends who have decided to part ways as a couple, but look forward to continuing our cherished friendship.”

Jennifer Aniston and Brad Pitt in 2004
| Credit: Tony Barson/WireImage

“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. ”

Pitt and Angelina Jolie called it quits in Sept. 2016 after two years of marriage and 12 years together.