Only on Thursday
There is a little of wordplay here too, with The Weeknd slipping in his clique ‘'XO’‘ with “I exist only on thursday”, EXist= X Only= O.
It would seem that here, ‘Thursday’ has an epiphany.
She is coming to the realization that she is being used, and is obsessed with the knowledge that she only exists to him or is in his thoughts one day a week — Thursday.
Although she is smitten, his feelings are not reciprocal — he has no true feelings for her. In a sense, she only exists on Thursday to him — she is beautiful and used for sex. He is so important to her that he is the world, and so Thursday is the only day she ‘exists’ and her life has purpose and she feels alive.
Furthermore, to her, he only exists on Thursday too. He’s also suggesting that he’s not of this world on the weekends, he doesn’t exist when he’s under the influence of his drugs, because he gets so high, he doesn’t exist.
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