“They had a great time together but they are just in different places in their lives right now,” says a source of Aniston, 39, and Mayer, 30, who kicked off their courtship in April.
A friend of Mayer adds that a reconciliation isn’t necessarily out of the question: “He never ends things with a clean slate. He likes to dwell on these relationships and sort everything out before saying goodbye for good.”
The split was first reported Wednesday by the U.K.’s Mirror, which said the couple split earlier this week, after initially deciding to spend some time apart.
Reps for Aniston and Mayer have declined to comment.
• Reporting by K.C. BAKER and ALYSSA SHELASKY
• See celebrity breakups (Ben & Jen! Brad & Gwen!) that took us by surprise on the covers of PEOPLE.