The pop star, 25, took to Instagram Story on Saturday, January 19, to share that she still remembers and misses the late rapper.
The post features a black-and-white throwback photo of the former couple in which Mac wears sunglasses and a hood while Ariana looks at him lovingly as they smile sitting behind a soundboard in a recording studio.
Here's the picture, check it out.
The pop star also shared a simple yet sweet message on Twitter less than 15 minutes into the day. He tweeted, "Miss u".
Mac died on September 14 from an apparent drug overdose.
Ariana and Mac, who confirmed their relationship in August 2016, got split in May 2018. Following their break up, the pop star started an affair with Pete Davidson, which who she parted ways on in October 2018, four months after getting engaged.
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