Posting this for my friend as we were wedding chatting last night. She didn’t give a high school friend a plus one, she’ll know a lot of people at the wedding. My friend never met her friends new boyfriend and there just isn't room for him, and her "B list" has some of the groom's extended family. She texted her as asked if she could bring her BF, and is complaining to their mutual friends that he wasn’t invited. I told my friend that it’s typically etiquette to give someone a plus one, but while my FH and I were dating he was invited to 3 weddings without a plus one. I feel like it can be argued either way...just curious what other people have done in this situation.