Nicole Richie and Joel Madden’s six-year marriage has had plenty of rocky moments, as Life & Style has reported, but the two are finally in a happy place. What changed? “Nicole’s matured a lot recently,” says a source close to the couple, who are parents to daughter Harlow, 9, and son Sparrow, 7. “She’s become more understanding and patient about Joel’s insecurities.” Joel gets a little needy when they spend a lot of time apart, the source says, so during a recent conversation, “she reassured him that she’s there for him no matter what.” Nicole, 35, even shared a rare, cozy Instagram of herself posing with Joel, 37, during a recent date night. “They want to put their differences behind them,” the source adds. “They would love to have another…
