By Jodi Guglielmi
February 21, 2018 10:23 AM

Jennifer Aniston is getting by with a little help from one of her Friends.

Matt LeBlanc sent his well-wishes to Aniston in the wake of her split from Justin Theroux. And while the actor said he hasn’t spoken to his former costar since the news broke, he trusts that she’s “doing okay.”

“I haven’t spoken to Jennifer about it but I’m sure she’s doing okay right now,” he told The Sun, while discussing his British TV show Top Gear. “She’s a big girl.”

The 49-year-old and the Leftovers actor, 46, announced their split last Thursday after seven years together and two and a half years of marriage. The two met to make the final decision on Valentine’s Day.

| Credit: Reisig & Taylor/NBC/NBCU Photo Bank?Getty

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

In PEOPLE’s new cover story, sources close to the pair detail how Aniston and Theroux’s clashing lifestyles drove them apart — and how powerful chemistry first drew them together.

Longtime L.A. dweller Aniston’s attempts to adapt to Theroux’s New York City-based lifestyle “made her miserable,” says the source close to her, while Theroux was never comfortable in her luxurious but insular L.A. world. “They couldn’t find common ground that made them both happy. It became exhausting and frustrating.”

But despite all the time they spent apart, they tried to save their marriage.

Credit: Kevin Winter/Getty

“For many months they tried to make it work. They even had therapy,” says the source.

Still, Aniston “seems okay” in the wake of the split, says the source. “She has an amazing life that she loves and is very grateful for. Jen would be the first one to say that she is a lucky girl.”