I think it is wonderful that you set this boundary .
Wonderful that you gently spoke to him about al-anon - and wonderful that he asked. (even if he did quack away, predictably, about 'going to meet men...etc)
Wonderful, too, that he even went to a few meetings.
I know my own recovery in al-anon has come in bits and pieces, false starts and setbacks. I would go to a meeting or two, decide they were all nuts, or they all hated me, or I was not good enough to be there --you name it. I'm sure addicts feel the same way.
(((((((crushed))))) Thanks for sharing your story ~ nitelite