I wish I new what to say to help your friend purps, but I have nothing. I can't even relate to his experience because for me it wasn't even an issue when I left. I just knew it wasn't for me and walked. I didn't care who it affected all I knew was that it wasn't going to affect me and my kids (it still did in a way, because of my meddling mother).
When I left I walked out and never played their game, never went to another elders meeting, meeting, memorial,assembly, nothing.
I'm glad I got away without it affecting me as it does so many others that post here. My heart really goes out to those who can't for whatever reason just walk away.
Tell your friend that he/she is in my thoughts, keep his/her head up and don't let them ruin another day of your life if you can help it. We have no way of knowing if there is anything after this life so enjoy what you have now and don't worry about what comes next because life is too short!
nj