Hello Anon
All three are correct.
In #1, you recount a particular incident.
In #2, you recount how you asked your wife to observe a general rule; but that same night, she didn't.
#3 could mean either #1 or #2.
However, the last clause is a little misleading: it would be more idiomatic to say "but she did" (i.e. she did forget), rather than "but she didn't" (i.e. she didn't close the window).
MrP