The first that we see of Myron would be on January 16, 2017 on Mac's Instagram page. A few days later, Ariana then posted a short boomerang on Instagram Story of Myron on Mac's birthday. Through various times through 2017, Myron could be seen on both Mac's and Ariana's Instagram pages. On April 24, 2018, Ariana said that Myron had been living with her for a few months and he was "her everything".
After Ariana and Mac broke up, Myron continued to live with Ariana and the rest of her dogs, as he was constantly seen on her Instagram Story with Toulouse. On August 26, 2018 (National Dog Day), Ariana's mother confirmed on Twitter that Myron was Ariana's dog. On September 7, 2018, Mac Miller died of an accidental drug overdose. Days later, on September 19, Ariana posted pictures of Myron, and her other dogs, on her Instagram stories, meaning up until that Grande is now taking care of him full time.
- After Mac Miller's death, Ariana continuously traveled back and forth between LA and NYC bringing both Myron and Toulouse.
- After Ariana had received Billboard's 2018 Woman of the Year award, she posted a photo of Toulouse and Myron thanking them and stating that they were "the realest bitches i've ever known" .
- Ariana has Myron's name tattooed on her left foot.