Yes the ego thing u see. Though u as a girl may not know it
yet.. being.. well em a girl that u are,, imagine urself as USSR
and ur guy is USA. If ur guy gives into you, you will think he is
weak and not manly, and in not manly he will be less attractive to
you, since you as a girl are attracted to power, authority,
manliness and testerone etc etc.
Thus he does not give in to preserve his toughness, and you
actually enjoy/like that even though u do not know you do.