I know for a fact that my wife has never cheated on me, she has only ever had sex with one man and that is me, which really makes me feel bad, the girl has integrity and is very loyal, alas, which makes me feel very bad. I suppose men can take women for granted, not realising or just ignoring the fact, that they need just as much attention now as the attention you first gave when you were courting.
Women still like surprises and still like to be taken to places other than the pub, they love spontinueity and to be made a fuss of, not just to be cook and cleaner and bearer of children. So get your finger out lads, take home that bunch of flowers and tickets for a show, even though you'd just prefer to log in to E-I.