Please help me to understand this.
First, what do you mean by "summary"? I found a book that contains this sentence. Right before this tidbit, it tells you all you need to (wondering whether they made the "right" decision).
Second, I concur with Thomas, though I am questioning the choice he made. Did he not just agree with Sangeeta, but went with Phil instead?
It's meaning 1c in the Duden:
"die moralische Berechtigung, das Recht haben, etwas zu tun (verneint)"
https://www.duden.de/rechtschreibung/duerfen Curiously enough, this meaning is
not part of Phil's Wiki link.
Quite literally, it would mean whether she has the right to do this (e.g., isn't it God's decision). It's about something like this here:
https://www.deathwithdignity.org/news/2017/08/liberty-choiceBest