Sorry.. LOL
Anyhow, I’m not quite sure about what you mean on ‘a friendship is lost without confrontations’, do you mean slowly drifting away from someone without never talking about it….

Anyhow, that has happened to me a lot. I think 95% of the time I have said something to the other person. The other 5% of the time I didn’t care about whether we were friends any more so I just let it go.

So yeah, it really depends if you care about your friendship with the other person.
If you’re drifting from someone and you care about them, I reckon no matter how awkward it’s going to be, you should say something.. besides, if they’re really a good friend I’m sure they will understand and try to work things out.

Like every friendship is different, so you have to handle things differently…… 

However, sometimes even if you try to make an effort the friendship continues to “die”, usually due to the fact that the other person is not making an effort… or maybe other factors.

Personally, if this happened I would just go find some new friends and let it go… 

IDK IF THIS IS WHAT YOU WANTED LMAO