Christina Applegate is engaged to musician Martyn LeNoble, US Magazine reports.
This will be the second marriage for both couples who have been dating for two years.
Applegate was married to actor Jonatha Schaech and the two divorced in 2007.
Applegate overcame breast cancer. She was diagnosed in 2008 with the disease.
"I have a small but mighty support system and Martyn has really been an incredible part of my life," Applegate told Us last May. "Without him, I don't know if I could've gone through any of it. He came around at a time when there was a lot of loss in my life on many levels, so he's been a really incredible help."