Okay I have this really sticky, weird situaiton and I really need help with fielding the proper etiquette. My FI has 7 step-siblings. Only one is currently married. The other 5 are not seriously dating anyone and 1 is currently engaged and looking to get married this upcoming September (FYI, this is her second marriage and I knew her when she had just gotten married 9 years ago). My FI and I have been living together for the past 7 years of our 9 years together and she has choosen to invite my FI but not me. When he asked his SM she stated that this was because it was a very small wedding and immediate family only, her daughter is funding this wedding because it's her second, and since it's out of town, it requires a hotel and they don't want to pay for my hotel room. Once we got engaged his Step-mom demanded that we invite both his stepbrother and stepsister and her FI. Intially we were going to get married in June but because my dad doesn't like my FI; he's decided to have no monetary commitment and thus we have to pay for our own wedding and we pushed it back a year; thus, they will be married by the time we get married. So I know that if we invite her, we will have to invite him. We have no problem with him but we are trying to keep our guest list down. We both have quite large families and to keep our guest list smaller we had hoped to leave step-sibilings off the list. Can we do this? Both his parents were remarried when he was younger so the step-siblings have been a part of his life for a while; however, he really doesn't feel very close to them. How do we handle this situation? Since they are being rude to me and we have almost the exact same situation can we get away without inviting them? Thanks to all for all of your help.