Have you no idea that you're in deep?

from Arctic Monkeys – Do I Wanna Know Lyrics on Rap Genius

Meaning

Perhaps the girl has done something to jinx this relationship, such as spent the night with another man.

Alex retaliates by asking how much she values this relationship, maybe it has been going for a while, hence the deep-ness of it. yes. The woman does not seem to value the relationship as much as Alex and as a result Alex questions how in love she really is, using forced perspective in a way.

Does she really not believe that she adores him?

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