Jennifer Aniston Looks ‘Incredible’ after Breakup

Jennifer Aniston, showing no outward signs of grief over her breakup
with
John Mayer, got a pleasant surprise this week when she ran into
Friends pal
Courteney Cox at an L.A. restaurant.

"It was a pretty amazing scene. Jen was sitting at a table inside and
 then
suddenly Courteney Cox walked in," says a fellow diner at the
Sunset Towers
hotel’s restaurant Thursday night. "They were pretty
surprised and excited to
run into each other."

Both appeared to be having business meetings over dinner, the diner says.

"Jen looked incredible," says the diner. "Let me put it this way, it made me
doubt the breakup story, because there is no way she was blue in any way. She
was really happy … There was no hint of any problems."

Since the breakup, Aniston, 39, and Mayer, 30, have settled back into their
separate lives on different sides of the country, multiple sources tell PEOPLE.

Aniston has been spending time at her home in the Hollywood Hills, where she was
visited several times by friend and yoga instructor Mandy Ingber.

Mayer, after arriving in New York on Thursday morning on a break from his
current tour, kept an even lower profile. He is due back on tour in Charlotte,
N.C., on Aug. 19.

The couple, who had been dating since April, split mutually, according to a
friend of Mayer.

"They were going in different directions," says the friend. "He’s at the height
of his career and very focused. Different things are important to them both
right now."