Thanks ff415,
Let me expand on what I was curious about. Not responsibility’s of the Bs, the responsibility is always on the person making a choice if that choice is taken in isolation.
I am asking about the psychological facets:
Usually affairs, encounters and this kind of stuff is strongly driven and associated with chasing validation.
Usually validation is fulfilled when you achieve something, not for something you have already achieved (in the broken sense, secure people with no self worth issues have nourished validation for what they have, not what they miss, so asking from that perspective, common in WS ).
This seems to play out in the affair addiction, it’s "great" when is unstable, the moment it loses its spice (secrecy, deception, limitation of availability, uncertainty), the high fades.
I observed this pattern often when 2 affair partners get together officially, it won’t be long until one or both will seek out another affair to soothe the excitement and validation need.
The same I observes in cheaters who I know personally: when they are in a relationship with a safe partner they cheat. When they are with a partner that is keeping them on the edge, they become obsessed, terrified of,losing them, almost addicted (obviously they don’t cheat).
And somehow the same people also crave stability with a safe partner, but when they get it, they run away for infidelity.
I know this sounds like cognitive dissonance and I don’t think it is responsibility of the partner.
I wonder if you observed something along the lines in your same behaviors, needs, unfillment, and how the people you interact with play a role in this if it’s there (or was hopefully since most of you healed those issues)