Trying to get on the right side of Etiquette here: my grandmother and aunt are flying in from out of town for our wedding. My mom wants them to come to the rehearsal dinner. My FMIL hasn't come out and said she's unhappy with this BUT I'm prepared for it as she's made a couple comments (I HATE passive aggressive, like if you have something you want to tell me just tell me I'm not going to fish it out of you...but I digress...). I don't think it's out of line to extend the rehearsal dinner invitation to out of town family members that are staying in the hotel with you.
Now to the question: My grandmother...is she technically a part of the party? She will be escorted in before the ceremony begins as our mothers will be-is it appropriate for her to be at the rehearsal? My aunt and grandmother live together and are flying in together and anywhere my grandma goes my aunt is going so if it's a normal thing for grandparents to be at the rehearsal, I don't see why it would be weird (cont'd)