The Style Network's Emmy-winning Clean House host is engaged to boyfriend Jay Tucker, PEOPLE has confirmed.
"They're very happy and are in love and are looking forward to sharing the rest of their lives together," her rep Joseph Babineaux says.
Nash, 40, a former Dancing With the Stars contestant, and her electrical engineer beau announced their plans to get married at a weekend party where guests included her Dancing partner Louis van Amstel. Tucker then surprised her by presenting her with a diamond engagement ring, according to Entertainment Tonight.
"I cannot believe that God has been this kind that he would gift me this man," Nash tells ET. She adds: "Falling in love was the easy part, planning a wedding – yikes!"
The wedding will be in May 2011. Nash was divorced from her first husband, Don Nash, in 2007. They have three children.
Reporting by MIKE FLEEMAN