Rihanna was going out of her way to avoid being photographed with any guys at her album release party at club M2 on far-West 28th Street. The superstar insisted on arriving and leaving alone and surrounded herself with girlfriends at the packed party on Thursday night. A witness at the bash told Page Six, “Rihanna was having a great time. She danced until 4 a.m. in a skintight dress. She drank champagne and vodka. While every guy in the room wanted to get to her, she only stuck with her girlfriends. They even went to the bathroom together. She insisted on arriving and leaving through the back door — alone.” Maybe she shouldn’t be blamed for celebrating however she wanted — it was just hours after she was subjected to a grueling, prolonged security check at the LA airport. Other guests at the celebration for her new album, “Rated R,” included Def Jam boss LA Reid, DJ Khaled and hundreds of screaming fans.