Ruffo also took to the social media platform to share a sweet message to his partner on her birthday.
He wrote, "Happy Birthday to the most amazing, beatiful, kind hearted girl i know, you make me want to be a better person and i am lucky enough to call you mine, happy 25th birthday babe xxx"
In July this year, during an appearance on Studio 10, Johnny revealed he had another three months of cancer treatment to go.
"I've got a little bit of chemo left to do, I've got about three months left," the former Home And Away star said.
Panellist Joe Hildebrand asked the actor whether the treatment was "debilitating", to which he replied, "There are days where you feel like absolute garbage and you just want to lie in bed and do nothing, and that's what I do."