I attended a little class recently on marital chastity.
One of the major points involved: maintaining custody…
custody of the eyes (obvious)
custody of the memory (somewhat obvious)
custody of the imagination (obvious), and
custody of the heart (less obvious).
If you are married and have occasion to be in daily / regular contact with a member of the opposite sex…say at work, in a carpool, etc…you need to be on guard to not disclose certain aspects of your life to this person. If you start to disclose your deep hopes, aspirations, longings, worries, etc…then you are giving someone else “the keys to your heart”…and this can be very dangerous to your chastity. So, even if it means changing carpools, it’s so important to let your wife / husband be the only one with the keys to your heart.
I found this to be a good point…not sure if there’s enough of “this” in this topic to make it a forum topic.