Cameron Diaz dating Benji Madden has affected the Good Charlotte guitarist in a good way, as rumors are rife that marriage between the "Sex Tape" actress and the musician is already being discussed by the couple.

Interviewed by People magazine on Wednesday at the Alt 98.7 Penthouse Party, the effects on Cameron Diaz dating Benjie Madden are quickly apparent when the rocker confessed to being "really happy right now."

"It's same for any man, no matter what they do. It drives you. All people, I think, react the same way to the same situations ... like we were saying with Joel being a father ... we all want to be the best we can be," he said.

According to the magazine, Cameron Diaz dating Benjie Madden is not just going to be a summer fling as the couple thinks that marriage seems to be next progression in their relationship.

"It's early but they have talked about marriage. Benji spends so much time at Cameron's that it seems he now kind of lives there," People said. "Cameron hasn't looked this happy for years."

Meanwhile, MailOnline commented that Benji Madden looked healthier than ever and seems to be getting a makeover in his wardrobe, while still retaining his rocker looks, whenever he's out with the "Sex Tape" actress.

"Whether it was the getaway, the new 'do or Cameron's infamous sex diet, Benji appeared to have a little bit more of a dapper appearance about him," the tabloid said.

On the "infamous sex diet," the tabloid is referring to the interview the "Sex Tape" actress made with British Vogue in 2010 when she was asked about her secret to looking young.

"The fountain of youth? Let's see - I guess it's exercise, healthy diet, lots of water, lots of laughter, lots of sex - yes, sex, we need that as human beings. It's healthy, it's natural," she said.