Talk about a bad romance!

Ariana Grande and Pete Davidson's split has suddenly turned really nasty, as the singer now believes the SNL star is using their failed relationship to advance his career and raise his star power.

"Ariana is straight up tired of Pete talking s**t. She left him because he is arrogant, self-centered, selfish and an attention-seeking a**h**e. Everything he is doing right now just confirms to her that she made the right choice," a source dished to Radar.

"Everyone told Ariana that Pete was using her for his own career gain and this just goes to show that everyone was right. Ariana just wants Pete to go away and her family feels the same way. They just want him to get lost," the source added.

The comedian might just be using his craft to deal with his emotions surrounding the breakup, though.

“His friends think he is embarrassed by the breakup and that he has to overcompensate by making jokes about their relationship, because, days before they split, he was saying they would never break up,” one source told ET.

The "Sweetner" songstress just tweeted out some more cryptic messages, and it looks like she's not ready to put this drama to bed!

"got so much love..... got so much patience..... i’ve learnt from the pain .... and turnt out amazin.... say i’ve loved and i’ve lost..... but that’s not what i see cause look what i got.... look what u taught me. and for that i say ....... thank u, next," she wrote this morning.

This is why you don't get engaged after just a couple weeks, people!