How do I know if it's real?

The way I see it is that its not real if you have to tell your self if it is. On the contrary, If you have to tell yourself it's not and eventually come to the conclusion that it is love, then it is. For you. But how do you know the other person is feeling the same as you?
This guy - Hudson - is probably the best guy I've ever met. I really want to spend my life with him. We have to wait 555 days exactly til we can move in together. I just want to know how I can know if its real or not. He writes me love notes and cute little messages that he hides for me to find, and he promised me that I didn't have to be hurt again. Can I trust him?
On the flip side, how can I make time go faster til that special day??