I am so deeply sorry for the loss of Sleek-Heart. He was a beautiful dog, and sounded like a sweetheart. *hugs*
We get animals as our companions because they love us unconditionally while they’re here, give us fond memories when they’re gone, and help give us the strength to move on and open our heart again to another animal companion. To me, true love is the love you receive from an animal, and no matter how much it hurts for one of them to pass, or for how long, the memories and joy are always worth it.