Avril Lavigne and Chad Kroeger's engagement may have been a surprise to the world at large, but the Canadian rockers are a perfect match, according to friends and family.
"They have the same values and really understand each other," a family source tells PEOPLE. "They complement each other and are so happy."
Kroeger, 37, who first fell for Lavigne, 27, while working on her fifth studio album, proposed with a stunning 14-carat diamond ring on Aug. 8, but according to a source close to Lavigne, the couple isn't rushing to the altar.
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