On Friday, Davidson posted a picture of Grande on Instagram wearing a necklace with a replica of his late father Scott's FDNY badge and number, and a fan commented "No girl should ever wear your dad's chain. So disrespectful."
Davidson then fired back in a comment, "For your information, that's not just some girl, that's my fiancee. She's the greatest person I know. I gave it to her because she has my heart and that is the most precious thing I own. My dad would be so happy and love her so much."
Grande also commented on the photo. "I love you more than anything," she wrote.
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