Selena Gomez is reportedly "hurt" by Justin Bieber's behind-closed-doors business. One more one-night stand by Bieber upsets cutie Gomez. HollywoodLife reported that Gomez doesn't really want to know the details about Justin Bieber and Tati Neves steamy night session.

Post uploading the video of Bieber sleeping on a day bed (it went viral in day!), Tati opened up to Fantastico of Globo TV about how she slept in the same bed with him. It is unclear if she had sex with Bieber that night, but it is clear that something happened that night.

"Selena pretty much knew that Justin and Tati hooked up just by looking at the video of him sleeping in bed," an insider told HollywoodLife.

"Justin's team tried to do damage control by saying how creepy it was that this Brazilian girl sneaked into his room and secretly videotaped him, but Selena didn't quite buy that excuse," the source explained.

When Tati was asked if she and Justin kissed the other night, she said, "What do you think, if I was sleeping in the bedroom, just me and him?"

According to the insider, Tati's comment hurt Selena as she still have feelings for Bieber and doesn't wish to know what he is up to with the ladies "behind closed doors."

Tati said that 19-year-old Bieber invited her to his rented villa and according to HollywoodLife 50 other folks partied at Bieber's rented crib. However, according to Tati's new stark revelation she didn't see any other girls arrive at his place.

She told that she took the video before Bieber woke up the next morning.

Coming back to Selena Gomez, reportedly, she misses the old Justin Bieber. "He's not the same person she fell in love with and she feels sad for him because his ego is getting the best of him," the insider said.