Brody Jenner and Avril Lavigne
01/17/2012 at 07:50 AM EST
Is it really over for Brody Jenner
and Avril Lavigne
The couple have indeed split, a source tells PEOPLE. But the source says the lovebirds, who were inseparable for much of their romance, could very well get back together.
Jenner hasn’t commented on the breakup rumors directly, but seemed to address it with a cryptic post on Twitter
Meanwhile, Lavigne is focusing on her work and is headed out of town. The singer wrote on Twitter Tuesday, "Getting excited for my shows in Asia next month. Japan, China, Philippines, Malaysia – C U SOON!"
The unlikely duo started getting cozy in the middle of 2010. At the time, they took a trip to Vegas together and posted flirtatious Tweets
Jenner, 28, a former Hills
regular was previously linked to fellow reality costars Kristin Cavallari
, Lauren Conrad
and Jayde Nicole. Lavigne, 27, filed for divorce
from ex-hubby Deryck Whibley in Oct. 2009.
A rep for Jenner did not return requests for comment on the split.