The pair was first linked in January, just one month after the former Disney star split with trainer Jason Walsh. In a recent interview with Cosmopolitan, Duff revealed that she had been dating Walsh for a lot longer than their five months in the public eye, and that is was "serious."
"We were seeing each other for a while," Duff told the magazine. "People don't know the ins and outs of everything. It was definitely my first more serious relationship since my ex-husband [Mike Comrie]."
"I was like, 'F**k it. He's my boyfriend,'" she said about her decision to go public. "I just needed to make sure it was right. People don't need to know my business until I really know my business, you know?"