I could feel it.

Right about midway the writer was getting boxed into a tragic ending, then, was forced to make it a good ending. Solution; Tack on an alternative timeline!

Ruined what could have been something truly special. If they wanted to go that way, they should have done so from the beginning.

Odd scenes like; The car breaks down. Next scene they're back to hotel. Next day they're back out in the now working car, which promptly breaks down again? 😂 Huh? This goes beyond a mistake, suggesting general stupidity. If this was an alternative timeline, it was a really stupid one.

Just organize the scene intentions properly; Where are the characters at emotionally? What is believable and will drive the story forward? Get rid of everything else. Of course this only works if you HAVE a story.

And, I don't care if it's "BL". I care if time is taken to get the story right for the cast and crew who put so much effort into it. As it is, the barely first draft mode story failed a great cast, soundtrack and cinema photography trying to dress it up.

In an alternative timeline, I wrote a glowing review, while admitting I understood almost nothing.