Personally- no, I do not think these things can be blamed solely on alcoholism. The real problem is: what are you missing out on while you are on this merry-go-round?
It was a really strange feeling after I asked my AH to move out and started to notice things (things that were right in front of my face all this time) that were so beautiful or funny or amazing. Things I had been missing because I was too swept up with drama (is he angry? Is he going to come home? Is he drinking? Draining the bank account? And on an on)
Yes, there were some good times. But as co-dependent people I feel like we line up for these little morsels of happiness and excuse-away the bad behavior. I honestly think you are a way more interesting person than he is. So spend some time thinking about why you are settling for this relationship.
Sorry for the long winded response.