The reason why Iggy Azalea left Nick Young is heartbreaking

Iggy Azalea reportedly left her fiance Nick Young because he got his ex-girlfriend pregnant.

Life & Style magazine claims that the NBA star had an affair with Keonna Green, the mother of his four-year-old son, Nick Jr.

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"Nick waited until Keonna was four months pregnant to tell Iggy the news," an insider the magazine.

"He said it was a one-night stand and will never happen again."

The 27-year-old was allegedly supportive of Nick's relationship with Keonna, but the Lakers player ended up taking "advantage" of her trust.

"Iggy seemed to blow everything off," the source revealed.

"Until Keonna’s pregnancy, that is. This is something she can’t ignore, and it ruined their future together."

The Aussie rapper announced her split from Nick Young earlier this month.

The Fancy singer took to Twitter to break the news to her fans.

"Unfortunately although I love Nick and have tried to rebuild my trust in him – It's become apparent in the last few weeks I am unable to," she said.

She added: "I genuinely wish Nick the best. It's never easy to part ways with the person you planned you're [sic] entire future with, but futures can be rewritten and as of today mine is a blank page."

Nick was involved in a cheating scandal in March when a video was leaked showing the basketballer bragging about his infidelities.

At the time, Iggy brushed off the allegations, tweeting: "If there’s proof of cheating, she’d be doing me a favour to post it actually. Im not tryna marry a cheater."

But as the cheating rumours persisted, Iggy began to question her trust in the star athlete.

"I don't know. I'm still figuring it all out. It's still fresh," the singer said on The Bert Show.

"Because when you're in the heat of the moment or things are still progressing or coming out and you're getting new information, the way you feel about things can change really quickly. It can go up and down."

The couple started dating in November in 2013 and announced their engagement last June.

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