1. Paralyzing crush ... she got so nervous around you sometimes she couldn't be herself. 2. Relaxed ... she could be comfortable around you and one day it just happened. 3. Exhilarating ... you guys "clicked", there was a lot of energy and smiling, and things took their natural course. As most people here are male I've referred to SO's as "she." For girls, reverse the gender of the pronouns.