United Kingdom, Feb. 13 -- Stephen 'tWitch' Boss's widow Allison Holker has got engaged.

The former Dancing With the Stars professional dancer, 38, and her partner Adam Edmunds are to marry, after he popped the question on the "most romantic night" of Allison's life.

She shared several professional photos on Instagram, and wrote in the caption: "We're ENGAGED!

"It was the most romantic night of my life!"

Allison also thanked Adam for helping her to become a "better person" and for having a positive impact in her and her children's lives.

The star - who has kids Maddox, nine, and Zaia, six, with the late Ellen DeGeneres Show DJ, as well as daughter Weslie, 17, from a previous relationship - added: "I am so in love with you Adam. Baby,...