Coming back home after that year... it's like navigating a maze, dealing with everyday life again. Martha's tempted to say it's like that maze in The Shining, but she won't. She's fairly certain there's no axe-murderer lying in wait.
She finds her way by touchstones. Her mum and dad and Tish. Day after day at the hospital, just like before. Weekly phone calls to or from Jack. Finding a new bloody flat.
One day, she thinks, it won't seem like a maze anymore. One day it'll just be... ordinary life again. One day she won't miss him so much.