Mattis and Otis' friendship blossomed at home with their owners Joseph and Brittany Scaramucci. The Scaramuccis had had the guinea pig for a number of years before Mattis came along. But, much to their surprise, the two really seemed to delight in each other's company when they met — so they made sure they got plenty of it.
"Otis’ cage was right by Mattis’ kennel, so they were beside each other all night," Joseph Scaramucci told The Dodo. "When you took Otis out he would go to Mattis' and hang out."
Like all good things, this friendship sadly came to an end. Last month, Otis grew weak and passed away of old age; Mattis never left his side.
It was tough on the whole family — but then something happened that revealed the full extent of Mattis' heartache.