Weird feeling

How can it be possible ?
I've dreamth about you last night, someone i never really talk with. Ok,  maybe i've talk with you in couple years ago, but it's just short conversation, there's nothing more than that. 
I had better dream than this one,  but why it making me think of you all day long. 
It's really weird felling,  because i missed you for the reason that i don't really now.
Have you ever felt when you busy with your life and in the other place far from you there someone who thinking you,  wondering that you thinking her/him to ?  I love this felling,  but hate this too.  It's weird.