I love this poem, it captures love without once using the word (I think). It is a beautiful poem. I remember feeling this way when I met my wife, and on the day I first blurted my love out to her. This poem expresses the universality of the situation and lets those yet to experience it for themselves to understand what they have to look forward to.
I like that it doesn't confine its sentiments to romantic love, this could be a friendship, a mentorship, just a casual relationship. I really love the way all of that was captured in what really is a fairly short poem.