Shawn Ashmore is honoring his ex.

The X-Men alum, who dated Michelle Trachtenberg from 2004 to 2006, shared a tribute to the late actress following news of her death Feb. 26 at the age of 39.

“Incredibly sad to hear about Michelle’s passing,” Shawn, 45, wrote on Instagram, alongside a red carpet photo of the pair. “She was an incredible person and I will always remember the years we spent together fondly. She was loving, quirky and would never pass up a law and order SVU marathon.”

He also acknowledged her family, adding, “My condolences to her mother Lana and sister Irene! This is an incredible loss!”

Michelle and Shawn dated in the early aughts after she used her humor and confidence to woo him at a 2004 Oscars party.

“Well, I put out an ad in the classifieds: ‘Wanted, superhero. I’m a damsel in distress,’” she quipped in a 2005 interview with BlackFilm.com. “No, we just met. He hates anything publicity [and] we met at an Oscar party and he was just like Mr. Grumpy unhappy to be out in public and I totally approached him.”

The Inspector Gadget star continued, “I was the forward one. I take full credit.”

However, in more recent years, Michelle had been going through difficult times.