Just as the old sexist adage, “The way to a ‘man’s’ heart is through his stomach,” the way to a woman’s heart is through material. While many (particularly women) would like to believe that, during these “progressive” times, there’s a bit more substance to a female than this, it can’t be denied that people with a vagina are susceptible to the charms of expensive–or at least sentimental–gifts.
It’s not necessarily that all women are superficial, it’s that they have a tendency to quantify love and caring by what a “man” can and is willing to give them. If he gives her nothing (not even head), then what does she have to prove that he truly gives a fig about the relationship? She’s lent him her many orifices and a sympathetic shoulder to cry on when he inevitably transmutes into a bitch boy, but all he’s done is consistently prove that he himself has nothing to offer in a literal or figurative way. So when all else fails and you feel her rightfully slipping away from you, give the girl material.