RAPPER BIG SEAN & GLEE ACTRESS NAYA RIVERA CALL OFF ENGAGEMENT ...AND NOW IT'S GETTING NASTY

Six months after getting engaged, Naya Rivera won’t be walking down the aisle. The rapper and “Glee” star have called off their wedding.

Following rumors of a breakup, Sean’s rep confirmed the news to Us Weekly on Wednesday.

“After careful thought and much consideration, Sean has made the difficult decision to call the wedding off,” his rep said in a statement. “The recent rumors and accusations reported by so called or fake sources are simply untrue. Sean wishes Naya nothing but the best and it is still his hope that they can continue to work through their issues privately. We will not be commenting again on this matter.”

There had been tabloid reports that Sean cheated on Rivera, but Sean’s rep refuted the allegations. “Sean did not cheat on Naya and the allegations are 100% false and untrue.”

The “Beware” rapper was the one who called off the wedding, according to Us.

And now the split between Big Sean and Naya Rivera is already turning nasty -- with Naya accusing the rapper of stealing expensive jewelry from her house.

Sources close to the couple snitch that Sean actually made the decision to call of the wedding weeks ago. Sources are also saying he thought Naya was too controlling and too jealous of the women he worked with and met on tour.

The "Glee" star took to Twitter today to accuse BS of thievery ... claiming he stole a pricey Rolex watch from her.  But sources tell us the watch was Sean's in the first place -- he bought it for himself when he became successful. Sources are saying Sean gave it to Naya to wear ... but it was never hers to keep.

So, Big Sean leaves the relationship with his watch, his enormous member ... and their potential to attract new women.