if you were almost done with it...there is a save point. Also that enemy shouldnt be getting back to back turns. I always had time to cure fear
All this P3 talk...I dont think I could be assed to play it again even if they did a full P3p + FES remake. I'd be more interested in a P5 Crimson already, or a P5 Arena
It's possible. As I had a very similar thing happen in one of the end-game dungeons.
Technically it isn't back to back turns, but due to fear it is.
So basically everyone on your team has their first turn due to ambush, enemy has their turn, which fears the MC. After the first turn of the ambush, normal agility rules come into place. MC having the highest agility, gets the first turn, but can't take it due to fear. Enemy gets their turn, and can use the kill feared characters skill.
Note: It's possible this scenario can play out differently due to levels. You might have been higher level, thus higher agility values.