Though Larry struggled to get out of it but was ridden with guilt and feeling of responsibility, Vivien fought to keep the sham marriage going till larry couldn't take it anymore.
I do prefer Joan Fontaine over her sister much better, however.
As was Hitch's intention, I believe, I could hardly be friends with Laurence Olivier after that, though I hope I didn't show it.
And Joan also seemed to have been a very direct kind of person who would tell you everything straight into your face, while Olivia looks like the kind of person who always seems super friendly and then talks shit about you behind your back lots of people who knew her say she's more like cousin Miriam than Melanie Hamilton in real life.