Jessica Simpson's dad seems to be taking a healthier approach to her new relationship than he did with her former husband Nick Lachey. "If Jessica is in love, I love the things she is in love with," Joe Simpson says of his daughter's relationship with John Mayer. "I want her to be happy. I'm always a fan of his. I love him - he's got great music... I think the beautiful thing is that [Jessica and John] don't do the same thing. He's a legend already. There's no competition. He's a guitarist, that's his thing. Jessica is a singer. She doesn't play guitar, so there's no competition.source