During recovery, I have been, as someone else has said "an a$$$ole". I was mean, rude and inconsiderate, basically because what I was going through was difficult. This was nothing to do with withdrawal, I was just taking things out on my loved ones because I was stressed, which is simply not on.
I'm not sure when I realised I was in the wrong, but I found better ways of dealing with my stress and stopped. I felt angry/irritable at times, but I dealt with it. If he can't grow up and deal with his problems in an adult way, then yeah, he is just not a very nice bloke.