It was an unconventional relationship.
At first, the two were neighbors, until the 31-year-old male model decided he'd move in with 89-year-old to help assist in her battle with cancer.
KABC reports the two originally bonded over some champagne, which led to their budding friendship.
Five years later, they were best friends.
Chris Salvatore posted though, with a heavy heart, that Norma Pattavina died Wednesday morning.
The couple documented their relationship on Salvatore's Twitter, where he frequently updated people about what they were up to.
Their story went viral, and the rest is history.