This song plays around the theme of people leaving in relationships, with each verse presenting a different scenario for leaving.
In Verse 1, the speaker seems to be talking to the girl begging him not leave in the chorus, while he has to leave and go experience the world.
In Verse 2, the girl is the one leaving, this time from a hookup, and it is implied that she has a man at home who now wants to leave her for her infidelity.