Rihanna and Leonardo DiCaprio have been rumored to be dating for a month now, but it seems that their relationship has ended so soon.

According to reports, the 40-year old actor cheated on the 26-year old diva. "The Wolf of Wall Street" star was spotted hanging out with a blonde model at a club in Los Angeles last Saturday.

"They were making out," an eyewitness told Radar Online. To make it worse, there were reports that the "Diamonds" hitmaker was actually at the same club that night and she was only a feet away. "Rihanna was at the owner, Richie Akiva's table, downstairs. Leo was at a separate table. He had his own by the DJ booth," said the source.

There's a huge possibility that Riri witnessed Leo's cheating ways, but the question is if she was affected by her PDAs with another girl or not. We reported last time that the two started hooking up when the actor split up with his model girlfriend Toni Garrn.

"After his breakup, Leo started texting Rihanna again. They decided to have some fun. He's a free man again. So he's back into the field full swing," an insider told Us Weekly. Rihanna also ended her relationship with Drake last year and is happy being single at the moment so there's nothing wrong with them dating.

"Neither one is looking to make this anything more than fun. He's into her, and they're enjoying it. This is a no strings kind of deal," their source explained. However, Rihanna and Leonardo DiCaprio have been demanding from each other lately.

He allegedly asked her not to get a tattoo until she has fallen in love while she asked him to lose some weight. According Hollywood Life, the songstress will do what he said because she's a woman of her word. The actor, on the other hand, finds her amusing because he never had any girl tell him what to do.