Access Hollywood has confirmed that Christina got engaged to her boyfriend, musician Martyn LeNoble, last month.
"Actress Christina Applegate and musician Martyn Lenoble are engaged. The couple, who have been dating for two years, got engaged on February 14, 2010. This will be the second marriage for both. There is no set date for the wedding at this time," a rep confirmed in a statement to Access.
Christina divorced actor Johnathon Schaech in 2007.
Christina's new fiancee stood by her side, and gave her support as she battled breast cancer and got a double mastectomy in August 2008.
"My wonderful boyfriend has been just incredible through this. I really honestly, if he wasn't there, I think there would have been a different outcome as far as my own sanity and my own strength," Christina previously told Access' Dish Of Salt Laura Saltman.
"I've been very lucky that he dropped into my life right as my world has turned upside down in so many ways. It was divine intervention," she added.
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