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I'm going to feel this way until I don't feel this way anymore.
— Sandy · Tootsie

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker declines to rush or explain an emotion away, saying it will last exactly as long as it lasts. The sentence is almost circular, which gives it stubborn honesty: no deadline, no self-improvement plan, only the acceptance that a feeling ends when it ends and not before.
Context reviewed