Hi Intel, and welcome to the board.
It seems that you are emotionally worn out yourself.
I would suggest that, first of all, you address that problem, in seeking professional help for you, and do that in secret.
Then when you are stronger yourself, you can deal with the rest.
A professional councellor will help you first, and then will be able to give you advice about how to deal with your wife, exiting the borg etc.
Good luck, and remember, there IS a solution. You WILL feel better soon.