Why do my friends seem to know more about me then i do myself?

It sounds like a great thing but it isnt. They found out who i liked way before i even bothered to tell anyone that bit dont bother me but lately they've been weird around me and i usualy have to start a conversation with them before they even say hi if i just stood there without talking they wouldnt bother. I know they dont hate me but i just feel unloved and that they know something about me or something to do with me i feel like a dumb person that they can figure things out easy and i cant i just want help with this.thered to tell anyone that bit dont bother me but lately they've been weird around me and i usualy have to start a conversation with them before they even say hi if i just stood there without talking they wouldnt bother. I know they dont hate me but i just feel unloved and that they know something about me or something to do with me i feel like a dumb person that they can figure things out easy and i cant i just want help with this.