licencia entoces
There are several ways to tell someone to leave in Spanish. One can say dejar. Another way is to say salir. Yet a third way is to say abandonar.
Voy a irme
nunca me dejes
Alístate para ir.
No salgas -or- no te vayas
I would just leave it as "Dexter".
Baby don't leave = Bebe no te vallas
Hola, dejame mensaje.
publeo ert poel
salir de la casa
Amame o dejame en paz
Nunca en tu vida, déjame.