wierd people!!!!!!

I met this old friend of mine recently, actually been running into a lot of old friends lately. And I find something really odd.
The conversations go kind of like this. (Me is me and friend is my friend, for the not-so-bright :P)
Me: Heyyyy! How u ?
Friend: Hiiii! Me good, how u?
Me: Am good too. So whats up?
Friend: Not much. Jus the usual. Hanging out with friends n stuff.
Me: Aaahh! I know, same here.
Friend: So then? What else?Me: Not much actually.
Friend: So where u headed now?
Me: gonna meet my friends.
Friend: Friends or one special friend?
Me: Hey just friends .
Friend: Oh, still single eh?
Me: Yep!!!
Friend: Why?
Me: ??!!
What a silly question? I mean just tell me, what would be a good response to that?! Why? WHY am I single? Now, why SHOULDN'T I be single??? Though that kind of question is completely normal, I wonder how their reaction would be if I ask them back something similar
Me: Why means... ummmm just not looking. U?
Friend: Oh ok. Me committed .
Me: why?
U think I should start doing that? :-?Yeah, thats not normal. Why? Because its normal that a person is in a relation. And its assumed that they are in love. Never mind that there could be a variety of reasons behind that, just for fun, no strings attached, serious, super-serious, in love but for the moment, just like the other n not really looking for a future and so on. If its obvious that a person is in a relation because they are in love(but like i said NEED not be) then isnt it obvious that a person is not in a relation because they are NOT in love??Weird people I tell u :)