Why does Humanae Vitae not mention involuntary celibates/singles?

I was reading *Humanae Vitae* today and noticed that there's no section for people who want to date and get married (involuntary singles/celibates), but women never give them a chance to go on a date with them. Why does the Catholic Church seem forget about this group? The Catholic Church says that marriage is a choice of free will, but some are not given a chance to meet someone and go on dates despite how hard they try to meet someone, when beyond their inability to date they're normal completely.