I'm Thinking Of Ending Things is adapted from a novel written by Iain Reid. The director of Eternal Sunshine Of The Spotless Mind has also directed this movie and it is now on Netflix.

The story revolves around a girlfriend who has second thoughts about her relationship which her boyfriend can hear out loud while on a drive.

A still from  I'm Thinking Of Ending Things
Source: https://variety.com/2020/film/news/im-thinking-of-ending-things-trailer-netflix-charlie-kaufman-1234726270/

Here are a few reviews you can go through before you actually sit down to watch it.
Spoilers ahead

Seems like if nothing else, this movie will surely leave you contemplating.