Well, here is just one thing I can contribute, having been at 'the other end' a couple of times.
If you need to vote someone off the island...please tell them why. No emails, no letters. Talk to them.
It might be hard to talk to miserable people...but give them the opportunity to clarify any thing that might've been misconstrued.
Don't expect them to agree with your decision, or admit their errors.
Just tell 'em and let the chips fall where they may.
It may be an emotionally messy conversation.
But, just get it over with, and then be done with it.
My heartfelt best wishes are with you! You are a lovely person.