Chris Brown and Rihanna didn't walk the red carpet together at the Grammy Awards Sunday, but they did sit next to each other at the year's biggest music event. In 2009, the couple canceled their scheduled appearances at the show on the day of the event after Brown assaulted Rihanna. This is their first time reuniting for the festivities. Their unified Grammy showing sparked sarcasm from Twitter users who were convinced that Brown would relapse.
"Chris Brown and Rihanna are sitting together at the Grammys because everyone deserves a 673rd chance," Robfee wrote. Brice_j_Johnson added, "Rihanna flinches every time Chris brown starts clapping LMAO." Dean Eddy, a therapist for Southern California Counseling Center, expressed concerns about Brown and Rihanna…