"The... things that happen between us. If you wouldn't, and you just don't want to... but we DO... then it has to be me. Maybe it's me." he pushed fingers through his hair in an exagerated form of his hair pushing tic.
He didn't need any reason to hate his gift, but if what he was seeing was something that he somehow made Zacharias do, and that it was something to him that he knew he would hate, that terrified him so...