March 05, 2015 01:20 PM

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Benji Madden and Cameron Diaz may have only just celebrated their two-month wedding anniversary, but he’s already got the rules of marriage down pat – when you encounter a puppy, share a photo of said puppy with your significant other immediately.

The musician, 35, posted a photo on Instagram of himself holding an adorable puppy in his arms. “Rule #1,” he captioned the pic. “When you’re away from home working and you meet a puppy, always take pics to send to Bae.”

The “bae” in question, Diaz, 42, is back in Los Angeles while Madden is hard at work in Australia with brother Joel on the set of The Voice Australia.

Following the puppy pic, Madden dedicated another Instagram to his new wife: “Good morning Hunny,” he captioned a brightly lit photo of himself wearing sunglasses and a half-smile.

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As it turns out, the Madden Brothers rocker is a pretty open giver of affection via social media. After tattooing his wife’s name on his chest, he shared a photo of the new addition to his expansive collection with the hashtag “#LuckyMan.”

Diaz seems to be responding to it, too.

“Since she started dating Benji, Cameron has changed in a very positive way,” a source previously revealed to PEOPLE. “She can’t stop smiling and seems much happier.”

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