Hm, can you pinpoint the reason why you feel like that though? Like, do they sometimes do something that makes you feel that way, or is it just a random feeling and you want to be alone for a while? Either way, they still have to understand that you sometimes just don't want to talk and their only option is to leave it at that until you decide to answer by yourself, when you feel comfortable again, no matter how much it takes.
Sorry for being like this, I'm usually rather cold and indifferent towards strangers, but sometimes my caring inner side comes to light and the only way to get rid of it again is to stab it until it goes away. :p
Sorry for being like this, I'm usually rather cold and indifferent towards strangers, but sometimes my caring inner side comes to light and the only way to get rid of it again is to stab it until it goes away. :p