selfish people dont need other people, not the way youre craving hun.. take it from a selfish person.. youll only be needed when i wanna need you.. other than that get the eff away from me.. peasant
When it comes down to it though, a 'selfish/demanding' boyfriend probably won't feel like he needs you... You'll have to give and be ok with not receiving anything in return most of the time.
However, what you imagine in your head isn't the same in reality. If you ever achieve your desire, you'll most likely regret it for the rest of your life.