I would hope so, my husband & I are very close, he's my best friend, but each of us have friends that the other isn't friends with, I mean like people we work with or friends from our past. Not people we like hang out with on the weekends or anything but I'd like to believe IF something were to happen to either of us, our friends would step up & say something & or help with searches or whatever needed to be done.
But it seems like in B's situation, the gf dictated who, what, when & where, I could be wrong, but I can only base my opinion from things I've read, which all seems to come from women who are friends with the gf, whether these women are married or not or if their husbands are friends with B or not but if they are I'd sure as heck hope they would be man enough to stand up & say something!
The thoughts & opinions stated above are that, MY random thoughts & opinions.