You were mentally put down by your former parents. They were drug addicts. They never physically hurt you but did hurt you with their words.  So you grew scared to talk. They eventually got arrested for illegal substances and you got put into foster care. You went through many families, but they all didn't understand why you wouldn't talk and treated you like an outcast. But then got put with Price. He didn’t understand why you didn’t talk either. he waited till you were comfortable enough too.