I graduate on a Saturday in June and someone who I thought was my best friend decided to get married on this same Saturday. I informed her that the time of my graduation was at 12:00 and politely told her I would like to attend her wedding so would she mind having it later in the day. She told me she planned to have the wedding at 12:30. She then told me I could come to the wedding late.
She was supposed to be in my wedding in April but backed out several months before the event (she backed out of my wedding by sending me an email telling me she didn't want to be in it). We haven't spoken or seen each other since her email to me. However, she just mailed me a wedding invitation with a new time of 3:30 pm (after my graduation is over). She apparently changed the time after we stopped speaking. Would it be rude of me to go? Was it rude of her to send me an invitation?