Three's company! It looks like Nick Cannon is to blame for Mariah Carey and Bryan Tanaka's break up!

The "We Belong Together" singer reportedly called it quits with her backup dancer boyfriend because of his insane jealousy over her relationship with her ex.

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According to TMZ, the last straw was at last month's Kids Choice Awards when Mariah and Nick posed on the red carpet with their five-year-old twins Moroccan and Monroe in matching outfits — and Bryan, 33, felt "disrespected" demanded she go home.

Mariah, 47, also got sick of footing the bill when it came to her much-younger boyfriend, who allegedly had an obsession with designer clothing and high-end jewelry.

mariah carey nick cannon getty images

The couple got together shortly after Mariah ended her engagement to billionaire James Packer last October and sources say they have not spoken to each other since they went to Cabo together at the end of March.

Their relationship was chronicled on her reality show, Mariah's World, where Bryan revealed he was also envious of her ex-fiancé.

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"Seeing Mariah and James connect is super weird for me because I haven’t really seen it before,” he said in one episode. “I feel like I’ve been living in this fantasy for a while and all of a sudden this is like a big reality check.”

Bryan seemingly spoke out about the break up on his Instagram account, writing, "Remind yourself to keep ya head up and lead with love."

As for Mariah, we don't expect her to comment on the split anytime soon.

"I’m just going to be like ‘I really don’t talk about my personal life.’ Because that’s what I used to do and it really worked for a minute, back, a while ago,” she said in a recent interview with the Associated Press. "I just don’t feel comfortable talking about my personal life…"