Directory stack (pushd and popd) behaviour in bash scripts

If I poorly write a script that uses pushd /etc but I don't finish it with popd: Will /etc still be in the pushd+popd directory stack/in RAM after the bash script has finished executing and Bash has terminated? Also does the pushd+popd directory stack clear (like variables do) if I close the terminal emulator session (which should terminate the bash shell process for that terminal emulator session) without manually clearing it with popd?