I planned on me, my mom & my bridesmaids (my 2 sisters) going to try on dresses. My fiance got upset b/c his mother wasn't invited. It old him it was just tradition in my family for the the FMIL to see the dress on the day of the wedding. It actually didnt' even cross my mind as I was just excited about the experience to bond with the women in my own family but now my FMIL thinks I'm leaving her out maliciously & says her feelings are crushed. I had no idea that this was even an issue, like I said in my family the FMIL was never there. On top of it my mom & my FMIL don't get along whatsover & every event where they are together is tense & awkward. If I invite her my mom will be unhappy she's there & that it's against tradition. If I don't invite her my FMIL will think its done on purpose just to hurt her feelings. What can I do???