Aw poor Polo . When my aunt, my mom's sister died, their Westie, Casey, had a hard time. He started peeing in the house and he didn't live very long after she passed. He was only 7 when he died. He had Addison's disease, but I think he died of a broken heart. My mom looks like my aunt and they wore the same perfume, Casey would perk up a lot when my mom was around Pups grieve just like humans do.