Unfinished Ending Or Tragic Ending?

Years ago, I watched a movie that left me with a question—one I still haven’t quite answered. Which is better: an unfinished ending or a tragic one? I don’t remember the title of the movie. I tried searching for it, but nothing looked familiar but I think it was about a girl who dances ballet. It was popular on Netflix at the time, which is why I watched it, though I remember not particularly liking it but I liked parts of it especially the ending.
My memory is unreliable, so forgive me if I get the details wrong. What I remember at the end of the movie is this: two characters, standing at the edge of a building. They were torn between killing themselves or leaving to start a new life. The latter one was just what went in my mind haha. I was at the edge of my seat waiting for what’s gonna happen next. I’m also torn on which would be the best choice for them and for the movie as a whole. Then, just as it seemed they would step forward, the screen cut to black.
I felt relief as the ending credits rolled. A real, physical kind of relief, as if by cutting to black, the film had spared not just its characters but also me. Although it seems like they’re going to jump when the movie ended, it still leaves a possibility that they changed their minds and chose to live. The relief I felt back then after how the movie ended was my answer. I’d rather choose the unfinished ending than continue even if I knew that the ending will more likely be a tragedy. I’d rather not know than witness something tragic. For a movie I think it’s a good choice cause it leaves a room for interpretation and hope. You get to decide how the movie ends for you.
But is that the right choice? If you know—if you are 80% sure—that a story will end in tragedy, do you still want to watch it unfold? Or do you leave before it happens? Even now, I still wonder: am I being practical, or is it just avoidance? Is it better to know, even if it hurts? Or is it better to let the story remain unfinished, existing in the space where anything is still possible?
And if we apply it to life—would you pursue something you know won’t end well, or would you walk away and live with the weight of what-ifs?