For Sarah Silverman to get so serious, it must have been love.
The comedian's dog, Duck, died yesterday at the estimated age of 19 after being in poor health for some time, prompting a heart-felt tribute from Silverman, who at first shared the sad news on Twitter and then wrote an "obituary type thing" on WhoSay.
"It always tickled me that even though we were different species He was my best friend," she first tweeted shortly after midnight Wednesday. "Duck left me today but I forgive him."
Silverman—who had some of the night's best lines at the Comedy Central Roast of James Franco, which premiered Monday—then expanded on her feelings for Duck earlier today, thanking her fans for all of the kind words and support in the wake of her loss.