My FIs older brother got engaged three weeks ago to the girl he has been dating for seven years. They have been talking about it for a long time and even asked us not to use a specific weekend because they were planning to elope at that time. Now they have planned an in town wedding, and scheduled it for the night of my graduation ceremony from residency. I have worked my whole life to get to this point and the graduation is a special black tie affair. I feel that they are telling me that I am not am important member of the family by scheduling their wedding for this same night. I am also horrified that they are making my FI choose between me and his brother. I brought it up with the brother and he blew me off, telling me that I was making a big deal of nothing and that he was not forcing anyone to choose sides. My FI plans to go to the ceremony and skip the reception in order to make my ceremony. I now really don't want to see his brother at family functions because I am angry and hurt. It is also causing problems because I have invited the wives of his other brother's to my bachelorett party, but do not want to invite his brother's fiance. Am I overreacting or does this seem incredibly inconsiderate to anyone else?