Well there are several times when people do mistake your friendship for something else and I know that it can get pretty annoying BUT the reality is that the fault does not solely lie on the other person. I am not saying that it is your fault either. I know that some people are just lousy pain in the butt and assume what they want to and when you tell them the reality they get ticked off. Those people are just stupid BUT when a person like someone then they start noticing that person more. The normal and simple gestures that they do not notice in other people; they start noticing in you. And their brain really wants them to believe that u like them to..s o thats what happens. Sometimes your friendliness can also be mistaken for a lot of things too. If you smile at them then they think they saw this glitter in your eyes that *might* suggest something different. We all want to believe that we are special and things will turn out the way we want it so we go on assuming what we want. Sometimes they come out the way we want and sometimes they dont. hey! That does sorta explain your question.. though in a psychological way.. HAHA... And my advice to you would be try to explain it was nuthin as such and if they still dont understand.. WHO CARES? u tried to tell them!! just ignore them and after sometime they wont bother you anymore.