The 'Marry The Night' singer - who was first linked to Kinney in September - apparently confided to her friends that she has no time for romance because touring is her priority for the next several months.
An informant went on to suggest to Us Weekly that the relationship soured because Vampire Diaries star Kinney "was never that attentive" to GaGa's needs.
"Taylor was all about himself, a typical actor, and didn't completely get GaGa," the insider revealed.
Kinney and GaGa have not commented on the latest report.
GaGa is currently in the midst of her 'Born This Way Ball' world tour, which will see her perform tonight in Hong Kong.
Tickets for Lady GaGa's 'Born This Way Ball' UK tour are now available here.
Watch Lady GaGa's 'Marry The Night' music video below: