Hello! My fiance and I are getting ready to send out our save the dates for our wedding next spring. There are a couple cousins/siblings that are invited that still live with their parents and so would receive the same invite; however, have longstanding girlfriends/boyfriends that will also be invited as their plus ones since they have been in the family for a few years and are at all the family gatherings. For example, my fiances sister still lives at home with his parents, but has a boyfriend that will be invited. His other siblings who live at home still don't have significant others and so won't be given a plus ones. How should I word the invite so that it is clear who is invited? I'm worried if I put + guest it would seem like everyone gets a plus one, but it also seems odd to name the significant other as they do not live in the same house. Should I just send their boyfriend/girlfriend a separate invite?