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.
No salgas -or- no te vayas
Baby don't leave = Bebe no te vallas
siempre se van temprano
Eres un(a) rompecorazones - only add the a if you are referring to a female. Leave the a out if you are referring to a male.
Te amo mucho miamor no me dejes porfavor.
licencia entoces
Voy a irme
nunca me dejes
Alístate para ir.
I would just leave it as "Dexter".
No salgas -or- no te vayas
Baby don't leave = Bebe no te vallas
salir de la casa
Hola, dejame mensaje.
publeo ert poel
No quiero que nunca me dejes
Amame o dejame en paz