Holly Marie Combs is waiting for Shannen Doherty to make good on a promise, just one week after the actor’s death at age 53.

Combs, who costarred on “Charmed” with her late friend, wrote a sweet message on Instagram Sunday about Doherty’s commitment to her.

“It’s been one week and it feels like forever,” the actor wrote alongside a video montage of photos of Doherty.

“I spent all day looking for one particular picture and found just about every picture but that one,” Combs added. “Shannen promised to haunt me but I thought she’d be occupied with a few others at first. Alas I’m sure it will show up when and where I least expect it. My rock. 10:18.”

Doherty’s publicist, Leslie Sloane, said in a statement shared with People last week that the actor died from stage 4 cancer.

“The devoted daughter, sister, aunt and friend was surrounded by her loved ones as well as her dog, Bowie,” Sloane said.

Doherty was first diagnosed with breast cancer in 2015. She went into remission in 2017, only for the cancer to return in 2020. Last year, she confirmed that the cancer had spread to both her brain and her bones.

“I don’t want to die,” the actor said at the time in an interview with People. “I’m not done with living. I’m not done with loving. I’m not done with creating. I’m not done with hopefully changing things for the better. I’m just not — I’m not done.”