Selena Gomez knows how to bounce back. She knows when not to give in "whatever" about the things that can annoy a normal person. Justin Bieber called Selena Gomez a "bit*h." He also told her to "keep that talentless pu**y away from me. "A series of ugly texts leaked online on Jan. 20, but Selena was not upset about it. The proof was her happy face at Sundance Film Festival.

Gomez was extremely delighted when she and Bieber came back together two weeks ago, but things only got worse after that. The alleged cruel texts from Bieber must have spoiled Gomez's day, but she put on that brave face at the Sundance Festival.

The 21-year-old Gomez looked sharp in a black buttoned coat, denim jeans, black turtle neck sweater and black boots. She was spotted posing with Co-star Billy Crudup and Director William H. Macy. She promoted her new film "Rudderless" at the film festival.

Radar Online reported Bieber blasted Gomez through text messages after she called him a "drug addict."

"F**K YOU!!!!! I need to grow up? HA ok! Enjoy life with OUT ME B***H (sic)," Bieber texted.

His team has not commented on this incident, while Gomez's reps denied the reports.

"I don't buy that bulls**t anymore. I was honest with you and I gave you a second chance. All my friends were right, You're such an a*****e," Gomez replied.

She also texted him that he must grow up.

"We r done. U need to grow the f**k up," Gomez texted.

According to Radar Online, Bieber ended the text war with this last ugly message.

"Go f**k someone else. Keep that talentless p***y away from me!"

What do you think about Selena Gomez putting up that happy face at Sundance Film Festival?