According to bossip.com:
Teenage turned adults Hollyweird it couple Justin Bieber and Selena Gomez are officially over.
The barely legal lovebirds have reportedly been broken up for over a week after lil miss Gomez decided to kick the Biebs to the curb last week before he had a chance to dirty-dog her.
Justin Bieber and Selena Gomez have broken up after dating for over a year and a half. It’s over. The split to end all celebrity gossip splits took place last week.
Selena, apparently, was the one who ended it.