WENN reports Sean ‘P. Diddy’ Combs bought ex-lover Jennifer Lopez a $720,000 diamond necklace for Valentine’s Day in a bid to win back her love. “He wants Jennifer back for keeps. Ever since she broke up with Ben, he’s been out to woo her back,” an insider revealed. “He told her he wanted some input on some music he’s working on and was going to send her some CDs to listen to. He hid the necklace in one of the CD cases and told Jennifer to listen to that one first.” According to sources close to J.Lo, the gift has made her reconsider their future together.