As for Jean at the time of that conflict, he had scour the Omniverse trying to find a way to revive his beloved.
From reanimation fringe science, to ritual magic, none of it could revive Paulette.
Paulette death is a peculiar death, almost never happen.
She died on the arms of a Sovereign that was about to ascend and in that moment of death, the tribulations of a god descended on her and her death could even be considered….a sacred death , a death decreed as "truth" itself.
But at that time, no one really knows the rules of Sovereign ascension
No one expected that the moment Paulette died at that moment in the zone of the ascension that Jean himself could not return to that time to reverse what had happened. In any other time period, Jean could easily returns.
Of course, there are some forbidden time zones that Jean could never return to.
And one of that time zone is when he ascend.
In a way this is protection provided by the Omniverse.
