I am SO sorry for your loss.
Although I have never met him or you, I do feel as though I knew him as you shared with us his life for so many years.
I know through your words how much you loved him and I feel certain that Ben knew this.
Ben was blessed with having such caring owners and he is at peace now.
The next few days and weeks to come will be difficult as you come to terms with your loss but try to focus on the good times you had with him.
Choose some favourite photos of him to display and smile (and maybe shed a tear) as you look at them and remember his good life with you.
Please look after yourself, your husband and Harry. My thoughts are with you all.