Whilst I admire your intentions to care for yourself following the operation, there's no guarantee that you'll be able to, especially in the early days after returning home from the operation.
As usual Sludge has given some excellent advice and contacts, but assuming you won't require any help is difficult. Both Health and Social need to work together regarding your wife's behaviour and potential treatment to ensure any risks to yourself, your wife and any carers are mitigated before you return home following the operation and beyond.
I wish you well.