person A: I was devastated when I recently had to my chihuahua Riley to sleep.  She had Congestive Heart Failure.
person B: at least Riley passed in their sleep. Hopefully they didn't suffer. i'm sorry you lost a loved one.
person A: Thank you.  She was my constant companion.  I loved her so much
person B: i have a big doofy mutt who is a 75 lb lap dog in his heart. i know the feeling