I can relate. Not from the same experience but from the same "patterned behavior". You see, both of my grandfather's were alcoholics. While my parents did not abuse alcohol (and drank a beer like once a year) - a counselor at my brother's rehab told me mom that while she didn't drink, she acted like an alcoholic. I didn't fully understand that, of course, until I found myself married to an active and progressing alcoholic. And then I began to see the similarities. (Emotionally uninvolved, spending lots of time alone, etc). It was in seeing the patterns that I began to understand why "I" had accepted my XAH's behavior so easily! It was what I was used too.
So, in that sense, yes - it makes perfect sense to me.