Your aunt is baiting you ,poking you until you react and then take your words or actions or feelings to use against you.I advice distancing from her.She seems very toxic.She is making you react in a certain way,so that she can smear you as being an angry person to others.Are you sure the other relative are calling you the angry person?Or is it your aunt putting labels into their mouths and they just go along with your aunt.There are plenty of flying monkeys who do the narcs bidding.They are scared so try to pacify narc by being agreeable.