Questioning my Motives

Since I'm questioning moving in with my BF quite a bit, I wonder why - am I just too logical of a person or is there a real reason why I don't want to commit to it? Even he pointed out that you can't be completely risk-averse with something like this. There is a certain point where you have to commit to your choice and take the good and bad that comes with it. After an annoying night I wonder why I'd ever be crazy enough to give up my place. Not to mention my ongoing thoughts on travel, money, and future plans. I have always believed that if the relationship is for real and it's a good one, you'll move in out of love and excitement. Some of those things seem to be missing for me as I make this decision.