RSVP Question - What is the etiquette on this?

Yeah it's not that big of deal to me. Maybe she thinks you have already paid and that she doesn't want to waste a meal or your money.

I agree with everyone else. Its rude. "Its a wedding not a backyard BBQ" is my dads current invite mantra, and quite personally I wouldn't want a random person who that I may not ever see again (with the exception of someones significant other who I may be meeting for the first time that day). Totally up to you on how you want to handle it.

I would be a little ticked off, but unless you have a super small wedding, I'd let it go. You've got bigger battles to fight than this.

I texted her this morning and said "Hey, sorry I didn't respond yesterday. We'll plan on your boyfriend coming, and if something changes, you can let us know."

While I'm really annoyed by her, I've decided to take the high road.

We have a few guests who were given a plus one for a date (a courtesy plus one because they're single) and they're bringing friends that we aren't even friends with. It's rude but I don't think there's anything you can do about it.

I totally wish I remembered to number my rsvps! They go out tomorrow and my mom is sending them since I'm at school, and I don't want to have her carefully open all the invites to number the rsvps...hopefully everyone is very clear or at least indicates a name so I can call if I need to.

But in regard to your question, I'd be a little upset/annoyed at first, but at the end of the day youll be married to the love of your life and with mostly friends and family so the one random person wont make a difference

I think your response was perfect. I'd be mad at her rudeness too, but not inclined to make a stink over one person.

I had one friend who pissed me off soo badly with his RSVP nonsense for my first wedding that I actually dropped the friendship and haven't spoken with him since my thank-you card went out. He asked for a +1 and I agreed, then he wouldn't tell me if he was bringing this girl or what her last name was. Come to find out, he chickened out of asking her at all and I wasted the money on her plate. SO annoyed with that nonsense.

@Orchids, wow, that's really annoying.

This girl never even responded, so I guess we'll see what happens. I'm still annoyed, but you guys are right. There's a whole lot more to worry about than this one person.