Ariana Grande still "respects and adores" Mac Miller following their split.

Ariana Grande

Ariana Grande

The 'No Tears Left to Cry' singer and the 26-year-old rapper decided to go their separate ways this week almost two years after they went public with their romance in August 2016, and Ariana has now shared a touching message on social media offering her "endless" support to her former beau.

Posting a picture of the pair on her Instagram story on Thursday (10.05.18), the 24-year-old singer wrote: "Hi! This is one of my best friends in the whole world and favorite people on the planet Malcolm McCormick. I respect and adore him endlessly and am grateful to have him in my life in any form, at all times regardless of how our relationship changes or what the universe holds for each of us! (sic)"

Ariana went on to speak directly to 'My Favorite Part' hitmaker as she penned a sweet tribute to him in which she said she was "proud" of him.

She added: "Unconditional love is not selfish. It is wanting the best for that person even if at the moment, it's not you. I can't wait to know and support you forever and I'm so proud of you!! (sic)"

Earlier this week, TMZ broke the news of the couple's split, when it was reported sources claim the pair will remain "the closest of friends".

Insiders explained the pair decided to split after their work schedules became too busy but they still "love each other dearly" and are determined to stay best friends.

Ariana first met Mac when they recorded 'The Way' together in 2013, and 'Dangerous Woman' hitmaker admitted last year she had had feelings for him for a long time before they got together romantically.

She said: "We have loved and adored and respected each other since the beginning, since before we even met, just because we were fans of each other's talent."