There are three pairs of main cp, one pair each of bl, gl and bg. The stories of the three people intersect but are not always focused. They are probably like a few wavy lines.
As the title indicates, the three pairs did not get together in the end, due to various reasons.
The article will look at what happened to me from the perspective of each protagonist. Because I only have one gender and one life, I don't consider many aspects comprehensively. I apologize.