It’s looking more and more like Mariah Carey has indeed slipped off the deep end. Last week, People.com reported that Mariah never told friends or family members she was marrying Nick Cannon.

It turns out that Mariah didn’t even tell her own boyfriend of four years!! According to Us Weekly, producer Mark Sudack quietly dated Mariah and he thought they would eventually be husband and wife. Sudack’s friends tells Us Weekly exclusively that he is “heartbroken” over the sudden nuptials.

“He never thought she would go off and marry someone else. He’s heartbroken and shocked,” says the pal, adding that he “loved her so much.”

Here he is dating Mariah exclusively for four years when all of a sudden she ups and flies off to an exotic island to marry some dude she met on a video set a month ago! Did Mariah have another mental breakdown? And what’s with all these weird photo ops?

This will not end well.