As title really.

He's an alcoholic and it all came to a head earlier this week. He is now in an undisclosed location (?rehab, ?psych unit).

She is adament that he is not coming back into the house, has changed the locks etc. She is now looking at sorting out the mess he has left their finances in.

My first question is how does she make it official that they have separated?

I'm sure there are loads more to come but lets start there