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We thought they split up, but apparently these two got back together -- and the Maroon 5 rocker asked the Namibian model to marry him!

"Adam Levine and his girlfriend Behati Prinsloo are excited to announce they are engaged to be married," the singer's rep said in a statement. "The couple recently reunited and Adam proposed this weekend in Los Angeles."

Levine and Prinsloo split earlier this spring after dating for less than a year, and though he hooked up with 21-year-old model Nina Agdal in May, a source tells Us Weekly, "He realized he really does love [Behati] and she was the one. They are in love."

The couple began dating in May 2012 shortly after Levine split from Sports Illustrated swimsuit model Anne Vyalitsyna.