Commitment

Recently I got into a realationship that I was so eagerly trying to avoid. Dont get me wrong, I adore the guy and could possibly see something long term, but for some reason this form of commitment has me running for the hills. It fills me up with anxiety, to the point of tears. Im not unhappy. Im just scared. It feels like I've been through this before, yet its somehow different. Theres no red flags, no warning signs, I dont feel like throwing something at the guy. Infact, I am so content with the whole situation that it scares the living daylights out of me. The funny thing is, I am not the only one who feels frightened. Ah the joy of having a guy who is well spoken and although does not nessarily show many emotions has the ability to speak about them once in a blue moon. Turns out I frighten him as well. So is this a fear of commitment to one another or something entirly different? When the question of being girlfriend and boyfriend came up, I was hesitant, not that i havent been commited to one person before but because this time I actually care not to screw it up.