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  (PHOTOS) REUTERS/Mario Anzuoni
  Rihanna and Chris Brown at the 55th annual Grammy Awards in Los Angeles, California February 10, 2013.

Rihanna reportedly ignored Chris Brown as the pair visited Hollywood club, Playhouse, on Thursday night.

According to various media reports, the pair, supposedly back together, arrived at the venue separately, and once there refused to speak to one another.

Rihanna, 24, and Brown, 23, have been the target of continued rumors over recent months about them getting back together, and recently Rihanna confirmed that they were once again dating. The decision has caught the criticism of many onlookers, who disagree that Rihanna should give Brown another chance after he was found guilty of physically abusing her a few years back.

However, Rihanna has said that if her decision to date Brown was a mistake, it was her mistake and she would live with it.

But things seemed far from perfect in their relationship on Thursday night, according to Us Weekly, who reported that the pair were "not on speaking terms." Apparently the pair simply joined their own separate set of friends and went about their nights as if the other were not there.

"She refused to sit with or even near him," a source has told Us Weekly. "When she noticed he was there, she made a huge show of rubbing her presence in his face."

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Earlier on Thursday, Rihanna posted a message to her Twitter fans on the social media networking site, writing, "Happy Valentines Day."

She added, "Today the day fa lovin not hatin so to cats like you and I it's just another day…"

The reports about Rihanna and Brown apparently ignoring each other, come just days after the recent Grammy Awards show, where they reportedly were inseparable. They were seen sitting next to one another in the Staples Center, and were described as being very close throughout the night. However, the new reports are suggesting the relationship could be having troubles again already. Neither singer has yet responded to the reports.

Here is a previous report over the holidays about Rihanna and Chris Brown getting back together: