My FI's grandmother assumes I don't know invitation etiquette.. she calls him yesterday demanding why she has not recieved an invitation to our wedding and that its rude not to send her an invitation when I haven't had the chance to order them but I am today. (My mom has been diagnosed with a disease and I have been dealing with that for the past month). And then she says makes sure to send invitations to so and so.. while listing a list of people my FI doesn't really talk to but she made feel him feel obligated. I know its respectful to send people invites to who are not attending its just made my FI and I feel weird on how she acted and her tone..