Ariana Grande
Ariana Grande is dating Mac Miller Reuters

Ariana Grande is completely in love with rapper boyfriend, Mac Miller. The former Nickelodeon star reportedly believes that he is the one.

A source said: "They talk about marriage all the time with each other, almost to the point where friends are rolling their eyes over it. The honeymoon stage they're in is pretty much at full throttle right now."

"Ariana believes that Mac is the one and if she doesn't eventually marry him, that any future relationship would be a bust," the insider added.

"[Ariana Grande] envisions having children with Mac [Miller] and is convinced all that will happen. She feels that Mac is her soulmate," the source continued.

The 23-year-old singer officially confirmed that they are dating in September. Grande posted a photo of the two on Instagram, and in the image she is seen cuddling the 24-year-old artist.

However, Grande revealed she is not comfortable talking about her relationship publicly, to Ryan Seacrest. The 41-year-old radio show host brought up the Instagram photo and remarked that she confirmed they are dating.

"Oh, is that what I did? Is that what Instagram means to you now? All right world, let's go... How did we get there? What was that segue?" she replied.

"Well, I don't know. I'm asking," Ryan responded. She then said back: "What are you asking? You said a sentence, there was no question. I don't know, man."

"It's like, 'Good morning, On Air With Ryan Seacrest.' It's too early for this kind of tea. It's too early, man," she continued. "If I post something, then that's what I'm willing to share at the moment. That doesn't mean that you, Ryan Seacrest, with millions of listeners, are entitled to more information."