The 23-year-old entertainer and Ricky, who was a backup dancer on her tour, were first linked during her infamous donut-licking incident last summer.
Ariana has hinted at the split on social media, deleting photos of the couple together on Instagram.
“life is wild and change is f**king fantastic,” Ariana wrote on her Twitter.
She later added, “why do y’all always gotta be right about everything. I love you. ty for loving me and caring and having my best interest at heart. I love u.”