In that case, I would change the third line of the dialog.
It's weird (not wierd!) to have the wife say something critical after the husband tells her that she's been a great help.
M: Do I turn right at the next traffic light?
F: No! Don't you remember? It's a one-way street in the other direction.
M: I forgot.
F: Well maybe if you had looked at the map more carefully, you would have remembered.
_________
M: There's the light. Do I turn right?
F: No, of course not. It's a one-way street in the opposite direction.
M: Are you sure? I think I should turn right.
F: Maybe, for a change, you should try thinking before you act.
The last line could also be: You're always rushing into things before you know what's going on.
CJ