This modern day Gilligan's Island situation could stretch into 2025.
https://www.washingtonpost.com/business/2024/08/07/starliner-nasa-boeing-spacex/
So, to recap, the thrusters that quit working prior to docking are working now, but are questionable if they would remain working after unlocking to allow the astronauts to de-orbit.
So, if the astronauts stay aboard ISS until either another Boeing flight or a SpaceX return, NASA can just remotely control Starliner and return it to Earth empty, right? Nope. Despite the previous flight being 100% autonomous, that portion of flight control was *removed* from the capsules flight computer. And reloading the old flight software would take months according to one report.
Okay, so they can still come home with SpaceX, right? Kinda. The next crew swap flight is utilizing the four person capsule configuration already to swap ISS guests, and adding two seats to this flight isn't an option.
On top of that, all the docking stations are full right now.
https://www.nasa.gov/international-space-station/space-station-overview/
Dragon and Starliner currently occupy the US docking ports, and resupply ships occupy the Russian docking ports. To make room for a rescue ship, SpaceX needs to come home, or Starliner needs to be abandoned and undocked.