I picked my BMs a couple months ago and asked my college roommate to be MOH. Since then we've had plenty of e-mails back and forth (I live in Chile, they're in the US) discussing general bridesmaid things like dresses and their flights, but it hasn't specifically been said that roommate is MOH.I don't really know if I should "do" anything about that. My 4th BM lives in Chile with me, and she already knows because she'd asked me if I knew who I was thinking about for the WP before I got engaged (not to ask if she was in it, she's a wedding photographer and likes to talk weddings). Really what I should have done when I asked was to say "would you please be a BM, X and Y are also BMs, and Z is MOH?" but of course in my excitement I just said "X, Y and Z are also BMs!"E-mailing my 2 high school friends who're BMs to say "FYI, college roommate is MOH" seems like saying "and you're not," which doesn't strike me as very nice. But it also feels weird to think of them showing up at the wedding and being shocked by the news - I don't want them to think it was a secret, and I don't want my MOH to feel like I had some reason for not telling the other BMs or that I didn't really want her to be MOH. I'm the first of my friends to get married, so we don't really have precedent for this in my circle.We don't talk all the time since I'm in Chile, so I don't know if it'll just come up in discussion naturally between now and then. I am probably TOTALLY overthinking all of this, but I figured some of you might have some good advice - I've lurked on this board long enough that I think I can take it