If you were hoping that Ariana Grande and Big Sean were going to last, you might be upset over these new rumors!

According to a report by Star, a source close to the two lovebirds claimed that the two split up just before Christmas:

"During the last visit they had together, right before Christmas, Ariana reached for Sean's phone and he about jumped out of his seat. She questioned why he was so jumpy, and insisted on seeing his phone."
Apparently, after he handed the phone over, Ariana was apparently shocked to see photos of other women on it:

"He tried to play it off and swears he hasn't hooked up with anyone since they became official, but Ariana was devastated. She couldn't believe the sort of things she saw them talking about to him! She refuses to return his calls. His grandma passed away a few days later and Ariana hasn't even called to check up on him. They're done!"
Whoa, that it is quite the scandalous breakup story! Unbelievable, we might even say!
You can officially call us skeptical.