What did The Crown truly get proper about Princess Diana and Dodi Al Fayed’s relationship?

Season 6 half certainly one of The Crown has simply been launched and far of those episodes concentrate on the connection between Princess Diana and Dodi Al-Fayed. 

However how a lot of their relationship which was portrayed in The Crown is an correct portrayal of actual life? After all, the present tries to stay to the details and recreate occasions as they occurred, however for a lot of elements of this present, absolutely some conversations and occasions will need to have been imagined for the sake of the plot? This is what we all know…

Was Dodi engaged to a different lady when he started courting Diana?