The ending of the relationship between Travis Bickle and Betsy

In Taxi Driver,
after failing to assassinate the senator, Travis Bickle goes to save the underage hooker. I understand that he is angry and furious, and kills everyone to save her as some sort of redemption, and also for the pleasure of unloading his rage. He ends up surviving and being made to look like the hero.
Things go well for him, and Betsy (which he used to like) goes to his cab. Did she now want to restart things with him since he was a famous hero? That was my interpretation. Or does the scene have some other purpose (possibly, simply a coincidence)?
In the end of the ride, he doesn't charge her and drives off. Was this a way to reject her, since she was just changing her mind because he was famous? Again, my interpretation was that he would've asked her out if he was still interested.
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Does Travis end up with Betsy?
Travis And Betsy Reunite: Not Real And it doesn't seem coincidental that she wears white. This is Scorsese's sacred ending for Taxi Driver: an angel with the face of Betsy welcomes Travis to heaven.Why did Travis Bickle take Betsy?
A lot of couples go to see these types of movies. These experiences had become such a normal part of Travis's life, and that he thought Betsy's moral imperative was just understanding, thought to bring the person he idolized to show her the evils of the world in which he fought.What happened at the end of Taxi Driver?
For freeing Iris, he becomes a local hero and is not charged for the murders. He also hears from Iris' father, who writes a letter thanking him for protecting his daughter. After Travis heals from his injuries, he is back to work as a cab driver and picks up Betsy.Was Travis alive at the end of Taxi Driver?
But what does Martin Scorsese have to say about the ending? Well, according to the director, Travis survived the shoot-out\u2026and chances are good he's going to erupt again. In the last seconds of the film, Travis looks into his rearview mirror and sees his own wild eyes looking back.Taxi Driver(1976) - The Date With Betsy
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