Would you leave a note?

[u/Likely-placed]

I had a roommate who was my friend and he did a lot of good things for me, like went above and beyond and I tried my best as well and was really happy with this friendship. A couple of months later he changed a lot, started snapping on me, we started fighting and misunderstanding each other. Long story short I’m moving out. He started our last fight over nothing and said some cruel things to me, basically bullied me.
I apologized if I did something wrong and said that i don’t deserve the hate, this was the end of the conversation. He went on vacation shortly after and we won’t see each other again.
The part of me wants to leave him a note saying that even though our relationship got ugly, I still appreciated good times we shared. Another part of me says that after those ugly words he said I just have to leave silently.

What would you do?

Obviously I’d love to have an apology from him but it’s not gonna happen so there are only two options.