It Does not automatically mean that. In most cases the cheater still loves the partner but struggle with intimacy issues in the relationship.
In other words when the marriage gets to the point that one partner becomes distracted by the rigors of career or life and the the cheating partner feels set aside, less desired and therefore lost. That partner chooses not to communicate or doesn’t know how to communicate about this difficulty (the spark is gone and I don’t know how to get it back). It is therefore a lack of coping mechanisms that the cheating partner is vulnerable to outside attention from someone other than their spouse.
They love the spouse they are cheating on but they need that “spark” and they find it in someone else.
At this point it’s all neuro chemical. Look up the word Limerence. It will be explain many things.
There are no valid excuses in cheating of any kind.
