Meaning of "Marika Is Sleeping" by The Japanese House

The repeated question "Oh man, did you change your mind?" highlights the speaker's frustration with someone who is indecisive and constantly changing their thoughts and opinions. The lyrics seem to suggest that this person is unstable and unpredictable, causing frustration and confusion for the speaker. The lines "You think far too much" could imply that overthinking and analyzing situations is causing this person to constantly change their mind. The overall tone of the lyrics conveys a sense of exasperation with the person's behavior and a desire for them to be more straightforward and consistent.