Two people who love each other always learn each other. After a while, when a couple is together they learn each other's patterns of sexual behaviors. Normally a man has frequency in his sexual life and this means some have it twice a week, some once a week, some every second day, some twice a day and others once a month depending on their age and fitness well being.
It is very important to observe when a man needs sex and and how often he does it. This tells a woman when he cheats and when he is honest. Eventually a woman's body submits to the man and follows his pattern.