Do people deserve an explanation if you choose to remove them from your life?

Somebody did this to me in the past and it was devastating never knowing the true reason for what happened. Now I’m about to do the same to somebody else and I can’t decide if it’s better to lay it all out in a long list of reasons or just stay silent. EDIT- I should’ve clarified this isn’t a text or phone conversation. It’s my best friend of many years that I’m moving out of our apartment. Moving is a gradual process and it’s just very awkward because we have to communicate when dividing up our years of shared belongings. I was hoping to just pack up and leave without much talk but that’s not possible logistically.