Best Man's date

Yeah she's lacking class but at this point in your planning, just say "whatever" !

Eh, one less chair that has to be set up - I wouldn't worry too much about it.

When FH and I were making the guest list, he would say his friend's name and his GF. So After I got home, I used FB to find out who all these people's gf are. Because A. I need to know their name to send an invitation, B. If their still not dating, their not getting a plus one. I'm sorry, but I don't care for anyone's two month relationship. If things are serious, sure come on. But not the night before at a bar trying to find someone.

Trust me it would make me mad.

I do not get why this girl is "lacking class" etc? She does not know you etc. She has never met you, is apparently new in your BM's life and she is giving him space. What exactly do you expect her to do while he is getting ready with the groom etc in the morning? What exactly do you expect her to do while pictures are being taken etc?

By the time the reception roles around most of the BM's duties are done. You extended him an invitation to bring someone she is basically staying out of everyone's way until such time as things will be going on that she can be a part of. I think she is being gracious and considerate of you.

She also may know someone in the area that she is spending a little time with and then will join your BM when they decided that it was appropriate for her to be there.

Years ago I went to a rehearsal/wedding/reception for a cousin of mine. They had extended plus ones to all of the wedding party (Jen was the first in her "crowd" to get married). There were random people sitting around at the rehearsal and frankly it was a distraction for the wedding party. The same with getting dressed etc these people were hanging out in a lounge outside where their "dates" were getting ready and there were constant "commings and goings" instead of the wedding party being focused on the bride and groom. Then at the reception these people were just more guests that were having fun etc. I remember hearing more than one comment from some of these people that they wish they could have just come to the reception without having to have spent the whole day "waiting around".

I wouldn't worry about it too much.

Also, how do you know she's declining to attend the rehersal dinner and ceremony? Maybe best man doesnt want to bring her. Just want to share something a good friend of mine experienced. He started dating a girl just a few months before a wedding he was attending. They went on a few dates, nothing serious as it was just maybe 2 months. His dilemma was similar to your BM as he didn't know quite yet where it was leading. He liked her enough to take her to the reception but by bringing her to the rehersal dinner and ceremony might give her the wrong impression that it's more serious than it is. So many your BM just wanted to avoid that and I'd understand. Dating is hard lol maybe he's just avoiding any complications on a new relationship.

Sounds like she falls into the category of "bunk buddy". So why even give her any of your time or energy. She probably will not be around next week. She should probably come with instructions, date subject to change, name not needed. (Hope this made you smile).

Im guessing she's shy. If I didn't know anyone I wouldn't want to sit alone at a ceremony then stand around alone at cocktail hour either. Actually, I wouldn't go to the wedding if i wasn't dating the guy it does not sound fun at all. I think that's more where she is coming from.

One of our groomsmen invited his hook up buddy but she only showed face at the reception. I didnʻt care.

Maybe HE doesn't want to have to worry about her feeling comfortable while he is busy being The Best Man. Let's face it, after the entrance of the bride and groom at the reception he will give his speech and then his "responsibilities" are done. I wouldn't worry about it too much.

I don't think it's weird that she wouldn't want to come to the rehearsal dinner (although you're right to invite her). Lots of rehearsal dinners are kind of intimate. She doesn't need to meet other people if she's not up for it.

I do think it's rude to skip a wedding ceremony and only attend the reception, since the reception is supposed to be a thank you to guests for coming to the ceremony (which is, honestly, the WEDDING part of the wedding!). But I don't think there's anything to really do about it.