I wasn't too happy that he thought it was ok not to respond at all but sometimes etiquette is lost on him. He is an adult and I will not tell him how to live his life. The RSVP was not due until today so maybe my aunt heard I declined then called him, I really don't know. My father said he was happy to be invited to the baptism but was not expecting to be invited to every birthday party. He thinks he was invited just for the gift. I can't say if that was true or not. I also told him that my aunt's call confirmed that I was only invited so he had a ride and he agreed. I told him it was pretty insulting to me and he agreed. I know to never expect him to stand up to his family for me. The fact that he agreed with me is a big step for him, normally he would make excuses or tell me I was too sensitive.