I used to tell exabf I was going to place a breathalyzer on the computer, like the machine that people have to put on their car starters. I get strAnge fb messages. Also very public apologies and messages that should have been private. I know I will eventually have to unfriend and block him.
It's sad, I can tell by a Facebook post if he is drinking. Random music Lyrics are always a sign, along with other status updates that are a dead giveaway.
Once when he was drunk and I left for a couple of days he posted that joran vandersloot was his hero.
I have his password, and if I can't stand to look at something he posted, I delete it.
He got very upset when I left and changed my relationship status. I didn't publish it, but did publish when I changed my location and most of my friends clicked LIKE.