So many thoughts must be going through her mind right here. How will she be able to raise Agnes on her own? How will she survive without Tom? It's heartbreaking to see Liz so sad.
Sometimes there's nothing that can pull you out of a slump. Liz doesn't look like she's recovering very well, but who could after everything that happened?
Liz may be surrounded by friends, but she's still very much alone. She lost a year of her life and the love of her life. Nothing will ever be the same.
Unless Tom turns into a zombie, the guy isn't going to be coming back to life anytime soon. Seeing his dead body at the morgue was one thing, but this just solidifies the truth that Tom is really gone.