Rihanna was not her usual wild self at her “Unapologetic” album-release party at 40/40 on Tuesday night. The starlet — worn out by her dizzying 777 Tour that hit seven cities in a week and ended in chaos when journalists on her plane practically revolted — made a low-key appearance at Jay-Z’s Flatiron club. Spies said the singer arrived just before 2 a.m., following her concert at Webster Hall, but then relaxed with family members, including her brother and cousins, in a private room, sipping D’Ussé Cognac. A spy said, “She seemed very tired.” Just like on her 777 tour, where she made few appearances for her press retinue, RiRi declined to do the red carpet, even though reporters had waited hours for her to arrive.