Hi, Christmas bunny (am I close? French is not only NOT my first language, it's not one of my languages at all, but I know a few words),
It's very, very common--as I'm sure you know--for alcoholics to blame everyone but themselves for any problems in their lives. It sounds to me like you are taking very good care of yourself--seeing a counselor, making good boundaries--but it's very easy to keep second-guessing yourself, just because we hear from the alcoholic how "wrong" we are all the time.
You're NOT wrong. Keep doing what you're doing, and try not to take the nonsense he tells you seriously. Consider the source.
Keep it up with your counselor--you're doing great, and your confidence will improve with time.
Hugs!