IMHO there is definitely a correlation between alcoholism and addiction and infidelity.
Not all cheaters are alcoholics but all alcoholics eventually cheat.
I wish I had realized that because I dealt with my FWH as a functional alcoholic through out our marriage and believe it or not the one thing that he used to throw out at me when we would argue about his drinking was that he may not be doing everything that he should but the one thing he would never do was cheat!
ha!
it may have taken him 25 yrs to get to that point but eventually he did.
And...his MOW/co-worker was a drinking buddy (surprise, surprise).
He has said that a big part of the attraction was that she did not judge him for the drinking and instead encouraged it.
Drinking together was always a preliminary to the sexcapades.
So, part of the attraction for him was that she was the opposite of me.
I was his conscience reminding him what a screw up he was while she was his ego stroke who encouraged the drinking etc.
Alcoholics/addicts are also incredibly selfish and insensitive to the needs of others.
Our spouses may have been selfish to begin with but alcoholism makes them even more selfish.
The alcoholic mind blurs out personal ethics and values and only cares about feeding its pleasures and desires.
I realize now looking back that all of his years of drinking binges after work etc. laid the ground work for him to be able to compartmentalize a LTA.
There are similarities.
When he would go out after work he would compartmentalize and not think about home and his responsibilities there.
Drinking in the bar with his drinking buddies, blowing smoke up each other's asses, bragging, etc. was a world apart from his day to day life as a husband, father, professional.
The LTA was similar in that she was a drinking buddy and f-buddy. She was part of this compartmentalized world.
He always kept both world's separate so why not the LTA?
There was also a similar pattern to his guilt about the LTA and his drinking.
After a heavy night of drinking, the alcoholic becomes sober and has to deal with the consequences of their addiction.
The alcoholic often says to himself that" this will be the last time that I do this".
My FWH said the same thing about the LTA.
He said that after an encounter with the MOW he would regret it and tell himself that this would be the last time ....
but then just like with his drinking he would succumb again and repeat the pattern all over again.
It wasn't until d-day that my FWH finally hit bottom and woke up.
I was furious and kicked him out and he knew that I was serious about filing for divorce.
It was as if his eyes were finally opened to how low he had sunk.
He went NC with the MOW immediately and never contacted her again (not even when we were living apart and seemed headed for divorce!)
He got sober and has stayed sober ever since (over 6 years now).
He went to AA and did the 90 meetings in 90 days to start and continues to attend AA today.
He went to IC for 1 and 1/2 years.
He had compartmentalized his life to such an extent that it appeared as if he was shocked at his own behavior.
It's hard to describe this to someone who has not lived this but he actually appeared surprised himself at what he was capable of.
We were separated for 6 months and I did file for divorce but eventually withdrew the divorce complaint and decided to try to R due the changes he had made in himself.