10/08/2009 AT 7:05 PM ET
They reconnected for a summer fling, and now Audrina Patridge and her BMX racer beau Corey Bohan have re-split up.
“They broke up amicably a few weeks ago and are still friendly,” a source tells PEOPLE. “It’s mainly to do with their busy schedules. She’s constantly filming, and he spends six months out of the year in his native Australia. She’s single, and happy!”