My long-term partner and I are getting married. It's very low key, register office and then a little field with a marquee type affair - nothing fancy and close friends and family only. My best friend I've been friends with for twenty is years is going to be my "best person" along with my seven year old son from a previous relationship. I'm not having bridesmaids or anything, purely to honour their relationship and role in my life. Anyway, my brother-in-law recently took a dislike to my best friend due to an employment issue. My friend did nothing wrong at all. They worked within the same large organisation but not close colleagues. Anyway, BIL took offence to and became very aggressive, intimidating, violent and homophobic to both my friend and his male partner at a work goodbye party for my friend, to the extent my friend has said he he's scared to come to the wedding if BIL is there. Am I wrong to disinvite him and just invite sister and nieces / nephews? I'm sure it would cause chaos for my parents, but my friend's presence is my priority.