Man.. You explain exactly my feelings.. Well said..Sex is always like that. An orgasm releases "guilt" into a man's bloodstream.
Guilt over paying for it.
Guilt over just having been hog tied and having a beautiful woman peg you after you've been jerking off to the thought for a year.
Guilt over telling her you loved her when you didn't.
Guilt over living out that fantasy.
Guilt over cheating on your wife.
It's the old saying, "A stiff prick has no conscience"