Stany,
Your situation is much like the one I had with my husband. I learned a lot the hard way. Alcoholics lie. Period. When I thought my husband was "off" he was in fact plastered.
I was extremely naive. I never in a million years thought that a human could consume as much alcohol as he did and I never thought that lying would be as common as breathing for him.
I lived in pure insanity. We divorced and over a decade later he is out of money, often hospitalized or in jail. I had to block him from all communication after he sent me a vulgar text. And all this from a man who once operated a nuclear reactor.
I'm a very thinking person also and I am thankful every day that I finally figured out that the only way for me to survive was to be away from the madness.