Thanks NF and Trippin.
I needed to get out at that time, but I don't think my heart can really leave for good.
My first mission will be to get to the bottom of the drinking thing and get him to rationalise his actions. He's 37, has a child from an ex-wife he never sees, and another 12 year old girl born out of wedlock that he sees at least every second weekend when she stays with us - this call for a certain level of responsibility from him dammit!