VIDEO : Diddy and Cassie Are Dating Again

After a brief split, it looks like Sean ? Diddy? Combs and his back-on-again girlfriend, Cassie Ventura, have reconciled, as they spent Friday night celebrating her 30th birthday in style. A source told E! News that the couple is officially ?back together? Diddy won?t ever let Cassie get away. He loves her so much.? Diddy sang ?Happy Birthday? to his lady love, who glowed in a creme-colored floral crown as her beau presented a massive cake to her.