Keeping up a facade??
SCRIPT
Bree: "Well maybe if we take it away from him, then he'll start to understand what he did! He has not shown an ounce of remorse since the accident."
Rex: "Of course he feels bad! He's just, you know, keeping up a facade."
Bree: "Well, he's doing a fabulous job!"

QUESTION
What's the meaning of "keeping up a facade"?
FYI, their son hit a woman by car. He was in the DUI. She's in a coma.
I figure Rex says his son already showed some kind of remose by 'walking around the very residence where the victim lived with some guilty.'

Do I assume rightly? Please let me know your answer~

Question

Keeping up a facade??
SCRIPT
Bree: "Well maybe if we take it away from him, then he'll start to understand what he did! He has not shown an ounce of remorse since the accident." 
Rex: "Of course he feels bad! He's just, you know, keeping up a facade." 
Bree: "Well, he's doing a fabulous job!"

QUESTION
What's the meaning of "keeping up a facade"?
FYI, their son hit a woman by car. He was in the DUI. She's in a coma. 
I figure Rex says his son already showed some kind of remose by 'walking around the very residence where the victim lived with some guilty.'

Do I assume rightly? Please let me know your answer~

Answer

Keeping up a facade means showing others we feel happy/brave/strong when we actually feel sad/cowardly/vulnerable. We project an image that is not actually the way we feel.

Answer

facade is the outer wall of a building,
the metapher here is used to pretend something false

keeping the secrets inside would explain this too