We just got a call while at the grocery store from a guy that works for DH. He asked if we were planning on attending his wedding that is a month from today.
The thing is we have never received the invite. Kind-of hard to RSVP to something you never received.
So like I've said in the past some people are are rude and just do not RSVP. However, sometimes the people don't get the invite to even respond. Or in the case for my wedding, some of the RSVPs arrived late even though the guests sent them way in advance.
Please don't make the assumption the invitee is an ass and rude for not responding. It might be a case they never got the invite to respond or the post office didn't deliver them correctly.
What differentiates an average host and a great host is anticipating unexpressed needs and wants of their guests. Just because the want/need is not expressed, doesn't mean it wouldn't be appreciated.