After two years of dating, Nick Jonas and Olivia Culpo reportedly broke up, according to E! Online.

The couple purportedly parted ways after their relationship was allegedly tested by the challenge of long distance.

"This has been a sensitive matter and both of them still love and care about each other and only want the best for one another," an insider reportedly shared. "The long distance and ups and downs have been weighing on the two of them lately and it has not been easy but they know this is the best decision for them at this time."

Rumors about Nick Jonas and Olivia Culpo calling it quits surfaced after the former couple had not been spotted together since the 2015 Billboard Music Awards on May 17.

"It all started to go downhill after the Billboard Music Awards," an insider reportedly told Hollywood Life. "It's actually quite ironic, but Olivia started to get increasingly jealous over the amount of girls who were hitting on Nick and it just got to be too much."

"Ultimately, Nick ended it and broke up with her. Olivia is also busy with her own career right now, whereas she used to travel with him all the time everywhere, so differing schedules and distance also played a part in the breakup," the source close to Nick Jonas and Olivia Culpo reportedly added.

Nick Jonas may have hinted at possible problems with Olivia Culpo during a previous interview with ABC News. "The long distance is tough and dealing with that is always interesting, but it's all good," Jonas reportedly shared in the interview. "You know, we're both busy and young and enjoying life, and it's going well."

The ex-couple are reportedly busy with their own projects, with Olivia traveling all over the world for modeling gigs and Nick preparing for a tour with American Idol winner Kelly Clarkson in fall.