UPDATE: Mac Miller's team has confirmed exclusively to HNHH that the below story is 100% false. 

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It was only a matter of time until sources revealed the true (or just reported) feelings of Ariana Grande's ex, Mac Miller. The "Into You" singer jumped real fast from Mac to Pete Davidson and yesterday it was reported that Pete asked Ariana the four magic words and her answer was "yes." Since the news that shocked many, a source close to Mac tells Hollywood Life that the rapper is "devastated" and "he doesn’t want to believe it." 

“He is still broken hearted over their split and he can’t imagine how she could move on so quickly, or fall in love already," the source added. "It hurts Mac to think Ariana is considering marrying someone she barely knows. Mac loved Ariana for years, and it is like a punch in the gut to him that she would agree to marry someone new, after only dating them for a few weeks, and so soon after breaking up with him. Mac is crushed.”

Pete and Ariana have yet to officially announce the news about their next phase of love, but if Mac is feeling this way about it now we can't image how he'll react if a photo of the ring hits Instagram.