I am so sorry for your loss - and share your pain. I had (2) Basenjis - they were brothers - born January 21st, 2014 - “Dexter” and “Jazz”.
Dexter was my constant companion, my shadow my best friend - he passed on December 4th, 2020 - there isn’t a moment since that I haven’t thought about him and still brings me to tears when I think of his passing.
Jazz is starting to cope, his appetite has returned and we are helping each other through our grief. He too is approaching his 17th year and I shudder to think how I cope when his time comes. I have had dogs throughout my entire life, but there has been no better companions than my Basenjis - cherish the time you have with your Basenji - time passes so quickly.