In Scene Six, we see Tom preparing for his own escape. He now rejects his previous escape of the cinema and its vicarious adventuring, in favor of a more literal escape to the Merchant Seamen. Tom finally sees a route away from Amanda and Laura, adrift at sea without any true destination or goal. (There is also clear gay subtext in the idea that Tom chooses to be aboard a boat of only men for a limitless amount of time.) Jim, meanwhile, disapproves of his plan – his life may not have gone where he wanted it to, but at least he is trying to redirect his path, rather than leave it altogether.
But Tom's intentions are a perverse alteration of the deal offered by Amanda. Amanda insisted that he wait until Laura could find a husband. But Tom has only provided a gentleman caller and is already planning to leave. Indeed, he has even stopped paying the bills. He does not have the patience to escape the coffin without busting the nails, and has decided to not even try.