Why can't i ever be emotional?is it because im a virgo?

I wanna ask this question because i have never fallen in love with any girl so far,no matter how beautiful she is ,of course i do get the physical attraction to a girl thingy,but i never was or in fact have never been emotionally attached to any girl in my life,probably the extent to which i was physical with a girl was just a smooch!I'm 24 now and there are girls who are attracted to my physique and intellect,combined with a fantastic sense of humor,but that does not help at all!