When to get a willing, Yes, I do...

A woman should know that if her bedfellow does not require Sexual Gratification at least three times a week her ambitions to have him willingly make a marriage of her are done. It is best to manipulate the marriage proposal while he is hot and distracted―and therefore insensible to the placing of the manacles.
Of course, that age-old cure to bachelorhood―the so-called Shocking, Surprising, Amazing & Unwanted Miracle Pregnancy―remains, as ever, available for use with the unwilling.