By Michele Corriston
February 10, 2019 at 09:15 PM EST
Credit: Melissa Benois/Instagram

He’s her kryptonite.

Supergirl costars Melissa Benoist and Chris Wood are engaged, the actress announced Sunday.

Benoist, 30, posted an Instagram showing off her diamond ring (designed by Jen Meyer) as Wood, 30, kissed her cheek. A fire crackled in the background of the intimate image.

“yes yes yes it will always be yes♥️,” she captioned the photo.

Credit: Larry Busacca/Getty Images for Tony Awards Productions

The couple met on the set of the CW series — she plays the titular hero, and he joined the cast as her on-screen love interest Mon-El in 2016. Things apparently turned romantic sometime in 2017, when they were photographed kissing on the beaches of Cancun, Mexico.

Benoist was previously married to Glee costar Blake Jenner; they wed in spring 2015 and filed for divorce in 2016.