By Christopher Luu
Updated Sep 12, 2018 @ 9:00 pm

Ariana Grande hasn't spoken publicly about the death of her ex-boyfriend, Mac Miller, but her brother, Frankie, has. In a touching Instagram post, Frankie explained that Miller (addressing him by his real name, Malcolm James McCormick) was one of the reasons that he sought treatment for his own addiction and continued to be a support system even after Frankie had completed rehab.

Like Miller, Frankie had been battling addiction and mentioned in his post that Miller helped him before, during, and after his treatment. Back in June, Frankie celebrated being a year sober. He told People that he'd been in "a very dark place" and had to muster up the courage to ask for help. Presumably, Miller was one of the people that offered that help.

"I am beyond heartbroken over Malcolm’s death. He was a good friend and was wonderful to my sister. He was the reason I went to the rehabilitation center where I was detoxed safely from all of the drugs alcohol and medications I was taking, when I couldn’t imagine living without them. It was the place where I found the community of support that showed me that living life without drugs was a possibility and I would never have discovered that if it weren’t for Malcolm," Frankie captioned the black-and-white photo.

Though he managed to find words to express his feelings, his sister couldn't do the same. She posted a photo to Instagram paying tribute to Miller, in the same black and white, but didn't offer a caption for her followers.

Frankie Grande 2018 MTV Video Music Awards
Credit: Nicholas Hunt/Getty Images

"I remember when I would get 30, 60, 90 days clean and Malcolm would be there with a gift and a card and words of encouragement..." Frankie continued. "Telling me that he knew how hard getting sober is and how impressed he was that I was succeeding."

Frankie concluded his message with words of support for anyone facing addiction themselves. Having gone through it himself, Frankie's words are a powerful reminder that it's a difficult process and that having support is an important part of facing and overcoming addiction.