"Problem" singer, Ariana Grande and boyfriend Jai Brooks, have reportedly broken up again.

According to an E! Online source, it was just last month when the 21-year-old hit singer decided to end her relationship with her Aussie boyfriend.

The source further claims that Jai failed to make the young female singer feel that he supports her, especially during the passing of her grandfather, and that was allegedly the cause of the split.

On social media, the two shared several photos of them kissing, but recently, Ariana posted a cryptic tweet that the E! Online source believes, was meant for her now ex-boyfriend.

A part of the message says, "I hope you will surround yourselves with people who will be there for you thru the bad times, not just the good. I thank everybody who was here for me when I needed them as the ones who weren't really broke my heart."

On the other hand, Jai also tweeted a simple message that stated, "No war let's love."

Hollywood Life recalls how the two have been known for being an on and off couple.

Their second attempt on reviving their romantic relationship happened last May and the reports of it being over again have shocked most fans.

It is also believed that aside from the loss and loneliness Grande has suffered when her grandfather died, her singing career has been keeping her extra busy these past few months.

A different source spilled to E! Online that Ariana's ex-boyfriend is allegedly, too immature to understand how much of a workhorse the young singer is when it comes to her career, which is on a high at the moment.

An insider told US Magazine that the Ariana has been preparing for her album release and is totally focused on that part of her life at the moment.

Recently, Ariana thrilled her fans when she posted a 15-second teaser of her new track, "Love Me Harder," over Instagram. It sounded like it's one of the sexiest songs she's ever recorded.

Ariana is set to sing the national anthem for the coming NFL 95^th season opening on September 4, reports AP. It will be aired via the NBC and the NFL Network.