My best friend's therapist said "Most people have affairs TO HELP THEM STAY IN THE MARRIAGE".... now, that doesn't mean the affair makes the marriage BETTER... perhaps, like my friend, you have 30 years invested and your husband has emotionally "checked out" and refuse counseling, etc..... sticks his fingers in his ears and goes "lalalalalalal"... I happen to believe he is DEPRESSED, in fact, he is on meds for DEPRESSION..... many, many FOO issues.... but I digress. My friend does NOT want a divorce for a multitude of reasons, mostly comfort and financial... they have built a life together, but he is UNAVAILABLE to spend time with her as a companion. SOOOOO, she has a "boyfriend" of many years... a man who ALSO doesn't want to end his marriage, but who apparently finds some other level of companionship with my friend... I've met him... he's a nice guy.... they have things in common... BUT, neither would EVER jeapordize each other's marriages.... he is her confidant, but not waiting in the wings if she chooses to divorce her husband...
Only sharing HER story to illustrate that affairs can take many shapes, for many different, and complicated "reasons". Now, from My point of view, NO affair is a good affair... simply because it prohibits ANY chance for the MARRIAGE dynamic to change!!! AND, because, even though the third party out might not know, it is STILL disrespectful and HARFUL to them... even if they don't KNOW about it!!! Someone who is being cheated on can see things from a completely different perspective than the person who is just trying to fill in the gaps of their lives the best they know how.... cheaters do NOT see through any perspective but their own.
That being said, the MLC affair is an animal all it's own and cannot be compared with all other sorts of affairs... my opinion. The MLC affair is typically an escape from REAL LIFE, from FEAR, from EXPECTATIONS, but will survive exposure.... it often is a dumping ground for FOO issues and a place to work them out with a BPD partner... my two cents worth. Don't read so much...