Characters
I say, marriage with Max is not exactly a bed of roses, is it?
— Jack Favell • Rebecca

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
Jack Favell sounds sly as he remarks that marriage to Max is hardly a bed of roses. The phrase means the marriage isn't easy or comfortable. His polite, leading 'is it?' invites agreement, so it reads as a barbed prod at Max's marriage.
Context reviewed