"Karina and I have the utmost respect for each other," said Lopez in a statement released to People by his own rep. "She is a phenomenal and talented woman. I support her always and feel blessed to have her in my life."
The Dancing with the Stars third-season couple -- who finished second to Emmitt Smith and his professional partner Cheryl Burke -- consistently played coy with the media throughout their romantic relationship.
They were seen vacationing with one another in Mexico following the third season's November 2006 finale and Smirnoff moved into Lopez' Los Angeles home last May.
Lopez is currently starring in Broadway's A Chorus Line and is also serving as host for Randy Jackson Presents: America's Best Dance Crew -- the second season of which is scheduled to debut Thursday, June 19 at 10PM ET/PT on MTV.
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