I am so very sorry to hear about Arlo.
I wish I could say something to provide you with some comfort at this time. I lost my dog Rupert at a young age, he was only 3 and I was devastated. He loved me unconditionally and always seemed to know what I needed. There were times when I was too sad to even talk about it. What helped me in those moments was writing down how I felt in a journal I was keeping at the time, which allowed me to release some of my sadness. I had many funny stories about Rupert that I shared with others to honour his memory.
Please know we are here for you if you would like to talk or share any memories about Arlo.