I find this really hard to critique, but I definitely don't want to let it pass without comment, so I'm just going off on tangents, forgive me 
Still, it's what you've made me think about -- bearing in mind this is a generic "you" to the voice of the poem, not life advice for your lovely self. (a) being a bitch once in a while probably doesn't hurt, but you'll get better orgasms on your own (as you later point out) and you won't be selling your soul for some pathetic man who needs to be dominated because of underlying Oedipus issues. (b) shivering wrecks are just as manipulative as bitches and attract the same kind of man. ( c) dumb and vulnerable is attractive to insecure men who need the opinion of others to build their own self-image, so they surround themselves with lesser people because they're incapable of accepting second place; if you find such a man, exterminate him at all costs. (d) there's no such thing as unconditional love; love always fills some lack in ourselves (Socrates said it, and thousands since have agreed with him, so who are we to argue with some dead Greek dress-wearing schizophrenic?). This doesn't mean that love is selfish, just that it can't be unequal to work properly. As for "nice girls finish last" -- if you do it yourself, you always finish first 
Yes, this definitely strikes a chord.
Still, it's what you've made me think about -- bearing in mind this is a generic "you" to the voice of the poem, not life advice for your lovely self. (a) being a bitch once in a while probably doesn't hurt, but you'll get better orgasms on your own (as you later point out) and you won't be selling your soul for some pathetic man who needs to be dominated because of underlying Oedipus issues. (b) shivering wrecks are just as manipulative as bitches and attract the same kind of man. ( c) dumb and vulnerable is attractive to insecure men who need the opinion of others to build their own self-image, so they surround themselves with lesser people because they're incapable of accepting second place; if you find such a man, exterminate him at all costs. (d) there's no such thing as unconditional love; love always fills some lack in ourselves (Socrates said it, and thousands since have agreed with him, so who are we to argue with some dead Greek dress-wearing schizophrenic?). This doesn't mean that love is selfish, just that it can't be unequal to work properly. As for "nice girls finish last" -- if you do it yourself, you always finish first Yes, this definitely strikes a chord.
It could be worse