After taking Harlow for a stroll on Monday, Nicole Richie and Joel Madden had a little private time together yesterday in LA. Harlow isn't the only woman Joel dotes on these days — he was quite the gentleman opening Nicole's car door for her. Fatherhood is also making Joel reconsider his band's lyrics, and he told MTV News that having Harlow has "definitely made me think about my fans a little more, because they're people's kids, so I care what they think. And I care what I'm saying to them, because I want people to think about what they're saying to my child." Who knew Joel would turn out to be such a family man?