love triangles that can go either way / unpredictable end

I'm so tired dramas with "love triangles" which aren't really triangle, because SML/SFL loves just one sided and we all know from the beginning who will end up together. SML is just filler/annoying or better than ML and second lead syndrome breaks our hearts. 

In romantic melodramas without triangle, even in good ones, problem is same - we know what will happen, there will be slow or fast period of falling in love, then short honeymoon period, then problems and happy or sad end, but they will love each other.

There are also good dramas with intense and interesting plot, unpredictable story, but most of that high quality dramas doesn't have time for romance. But most of us watch dramas mostly for romances ))) 

so PLEASE RECOMEND love triangle dramas, where both guys/girls have chance and ending isn't predictable, at list in first half of the show. 

good examples that I've already watched are:

Reply 1988  (and other replies)

The King in Love 

Lucifer 

Dream High 

Doctor Stranger 

True Beauty 

Hit the Top 

A Man's Story 

Boys Over Flowers  (though here was worst choice at the end)

Lady & Liar 

When A Man's in Love 

Emergency Couple 

Sound of the desert

Discovery of Romance 

I need Romance 2

What happened in Bali 

Empress Ki 

Summer Desire

Phoenix 2020 it's still airing but I like the 2nd ML here much better than in the original 2004 version.   

Sorn Ngao Ruk  

Don't Hesitate  

The Promise

 Czakhareina:

Love Song

it is this one? https://mydramalist.com/20396-my-only-love-song