The 'Dark Sky Paradise' hitmaker and the 'Love Me Harder' singer called it quits earlier this month and the split was reportedly so bitter that the rapper may ''never speak [to Ariana] again''.
A source told HollywoodLife.com: ''Sean wants nothing to do with Ariana and has very strong negative feelings towards her. He has expressed to his friends and inner circle that he thinks she's immature and selfish.
''But the scary part is, it sounds like he really dislikes her so much now, that the two may never even speak again!''
Meanwhile, another insider previously claimed that the couple's relationship had been going through a rocky patch two months before they confirmed they'd call it quits.
Sean was believed to have been left upset when the 21-year-old star failed to show for his big performance at the House of Blues in West Hollywood.
A source also claimed Sean travelled to see his girlfriend ''10 times more'' than she did for him, with the star once asking him to spend a five-figure sum on hiring a private jet.
Meanwhile, it was previously claimed that the pair's globetrotting schedules were to blame for the demise in their relationship.
A source said at the time: ''They made the decision to part ways because their conflicting touring schedules would keep them apart over the next year.''
Corgan took to Instagram to confirm rumours of new Pumpkins material, saying the first songs could arrive as early as May.