When a husband belches after a delicious home cooked meal, even if it is several hours later, his wife should not take offence.
The belch signifies the husband's satisfaction with the recently consumed delicacies. The louder, more forceful, and larger number of accompanying belches directly relates to the level of enjoyment the wife has given her soul mate.
Upon belching, he fondly recalls the mouth-watering flavors of the carefully and expertly crafted dishes his beloved so gladly prepared for him, as well as the pleasure he received ingesting the aforementioned food. This is indicated by his warm, happy "mmmm" vocalization, which is often accompanied by that handsome smile she fell in love with.
However, the same cannot neccessarily be said in regard to other gastrointestinal expressions.