Recent reports have suggested Goodwin is dating her on-screen love interest after the pair was spotted enjoying lunch in Vancouver, Canada, where the show is filmed.
Now they have appeared to confirm the rumours by stepping out as a couple at Sir Paul McCartney's star-studded My Valentine music video premiere party in West Hollywood, which drew the likes of Reese Witherspoon, Gwyneth Paltrow and Orlando Bloom.
A source tells UsMagazine.com, "They were cute, but not overtly affectionate. They were standing shoulder to shoulder though and talking low and leaning in to each other smiling."
The He's Just Not That Into You actress plays Snow White opposite Dallas as her Prince Charming in the popular TV series, and co-star Raphael Sbarge admits their blossoming relationship comes as no surprise.
He tells the publication, "There's such genuine affection, which you can see on screen."
Goodwin split from her fiance Joey Kern last spring (11).