Personally, my wife and I have tatoos on our bodies to prevent this situation from ever happening to us.
If Sue and I are ever in this situation, we want (demand) to be with God.
Your personal choice is obviously different. For some reason, you fear death.
I don't think God is the least bit interested in your "demands". He is not yours, your wife's or any other person's puppet. We obey HIS commands, not the other way around.
"Do not cut your bodies for the dead or put tattoo marks on yourselves. I am the Lord." Leviticus 19:28 NIV