Hi! I am looking for ideas on how to include/honor my Fiance's father who passed away 4 1/2 years ago in our ceremony . His mother is now remarried and as we live out of state we are not super close with her husband. I feel he should have a boutinniere as he is married to the MOG, but my fiance disagrees. I think I win in that argument due to etiquette!

We planned to have an empty seat next to the MOG and I was going to put a flower from my bouquet on the seat in representation of my fiance's dad, but the MOG is uncomfortable with this. We are not having a religious ceremony. Any thoughts? I thought we would have a memorial candle at our reception just saying something like "In memory of those who are ever present in our hearts" which would be inclusive for everyone we've collectively lost, including my grandparents, but I feel like we should maybe do something more specific for his father, just not sure what and don't want to step on my FMIL's toes or make her new husband uncomfortable! HELP!