My FH's brother is our Best Man. He has been dating his girlfriend for 2-3 years, they live together and are pretty serious, on the path to engagement probably. She is pretty involved with the family. I'm debating whether or not to include her in our formal family photos. Some schools of thought would say "no" because the two are not married (or engaged), she is not officially part of the family. In a sense, I do lean that way because I personally feel like that is a really serious place and not to be taken lightly - almost like it has to be earned. I know that sounds harsh. I'll be honest, me and her aren't close and she's not close with FH, either. Will her feelings be hurt if she isn't included? Should I ask my FMIL what she thinks? How has this worked for you? Thanks!