aintfoolin, apologies not necessary, had same problem.
But you're on target, not only on the bench, but at the table, the women with them seem an intrusion. The glances they gave to each other, (Jack's eyes, God I love them), was also telling, like trying to communicate without words. The look on Jack's face when Ranall proposes the idea of get away together, unlike the FINT, someone approaches him, someone is wanting him. He look a little startled, but very definitely open to it. This is someone he didn't have to tip toe around, it must have been a new experience for Jack.