Julianne Hough is dating again.

The 'Safe Haven' actress - who split from 'American Idol' host Ryan Seacrest in April after three years together - was spotted in a romantic clinch with a mystery man at Nobu restaurant earlier this week, according to TMZ.

Ryan and Julianne, 24, are believed to split because he didn't want to get married and take their relationship to the next level.

The professional dancer got tired of waiting for an engagement ring and so called the romance off.

A source previously said: ''He just wouldn't propose. However, Ryan was this close to looking for rings. Julianne is the only girl Ryan has allowed himself to get serious with.''

It was recently revealed Ryan, 38, has moved on with 27-year-old South African beauty Dominique Piek, who is also newly single after ending her one-year relationship with 'Star Trek Into Darkness' actor Chris Pine in April.

A source close to the Sports Illustrated model said: ''She and Ryan have been out to dinner together twice in one week recently.''

The insider said that while the duo are still getting to know each other, Ryan, ''gets along really well'' with the brunette model.