My A stopped drinking for 4 months this spring/summer. I believe he meant it at the time and told me quite often how good he was feeling without the hangovers. He was eating at least 2 meals a day and he was handling anger well.
Then came the little signs. He sometimes complained that I was trying to change him. Then I was "keeping him from all the things he liked to do". Denied that what he liked to do was drink and troll ***** chat rooms. He made up things like TV shows that I didn't like to watch (but I let him watch anyways without arguing) and got really upset when I put on headphones to listen to my music so I wouldn't interrupt his country music. Just basically blaming me for stopping what he REALLY wanted to do which was get drunk.
Do I believe he was serious about quitting? Sure he was until the thought of drinking was so overwhelming that he felt he had no other choice. And without a program I'm sure if he ever finds sobriety again he will repeat the same pattern.