when your in a relationship regardless if its a friendship or girlfriend it's not about the lust of power, money, or "what about me" phase it's about unconditional love.
i've seen too many couples break up or get a divorce because of pride.
knowing that you are a narcissist there are support groups for you to overcome ths behavior it's not too late your only 21.
work on yourself you don't want to be 80 old and all alone because of being a narcissist.