My FH's cousin has sent a STD, wedding shower invite and now the formal invitation, but has only included him on the invite and explicitly written _/1 in attendance. We were both kind of surprised and my FH does not want to go to her wedding alone.
His mom, stepdad, grandma, sister and her FH all got invitations. His Grandma can't travel due to health, so they told us to just use her RSVP for me. It is pretty far for them all anyway, and they aren't sure whether they will be able to go or not yet and it will probably depend on whether my FH goes. Since his cousin's dad passed away when she was little, they want to make sure that somene from his side of the family is there for her.
I guess my question is, what is the proper way to go about this? I met his cousin at his Grandma’s birthday party about 3 years ago, but that was the last time any of his family has seen her. I would guess that she probably doesn't know that my FH and I are still together nevermind engaged since neither of us is active on social media and we haven't sent out save the dates yet. So do we reach out and ask her for an extra seat or what? My FH had said he was just gonna scratch through the 1 and put 2/2 on the RSVP but that seems a little rude to me if you don't call first.