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Miley Cyrus, Liam Hemsworth

Miley Cyrus, 19, and her on-again/off-again beau of three years, 22-year-old Aussie actor Liam Hemsworth, proved their relationship isn't just puppy love when the two got engaged in June. And while many of us may believe that the 19-year-old Cyrus is too young to be married, all that matters is that she's happy, right? Well, she sure sounds like it. "I feel like all my dreams are coming true," she tweeted shortly after her engagement. (6/27/2012)

Hot and cold celeb couples of summer

January 1, 1970

Some stars spent the summer taking their relationship to the next level, while others went their separate ways. – By Lizbeth Scordo and Raechal Leone Shewfelt, omg! staff

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