Okay, let's jump into this discussion, shall we?
I honestly do NOT understand the importance in "being in a relationship." And by that, I mean, I don't understand why you would have the urge to make something like that "offical."
You like/love this person, right? That person likes/loves you back, right? Now, what's the need to give that person a label to you?
Does it have something to do with significance to make them feel like they mean more to you than some other person that you talk regularly with? I think that question aimed more to jealousy... but whatever.
If you know, TELL ME. Leave a freaking comment. I want to know your opinion.
This is one of the reasons why I find people so interesting. We all act differently and are driven by different motives... So, enlighten me.