Well,
the topic of "cuckoldry" is a sensitive one because for a very long time (in the olden days) the only way for a man to be sure that the children a woman gave him were actually His - was to make sure that the woman:
-was a virgin before the wedding
-never ever had sex with another man after the wedding
(a woman for mysterious reasons knows when a child is Hers) (weird and not fair!)
Now, this has been a topic in European (world) History since... well, since History has been recorded.
why?
because sadly - humans still (for a few years) reproduce thru Sex! (yak gross) and most men still prefer their Boy child to come from daddy's big nutsack... (how quaint)
regarding how each individual experiences his own dealings with the matter at hand (so to speak) it is highly private and personal
and should only be debated in the privacy of a professional's office
(as even if it is a topic as old as the world - it is also a new one for every one of us at some point in our lives)