I find it greatly offending how BS/Sun groupies do whatever it takes to twist the story so that it fits their agenda.
Bumbleby was planned from the concept art/early writing stages already (just look at early designs, Blake & Yang were always meant complement each other visually).
Their original Emerald Forest encounter was already flirty & playful and was most probably changed in order to give them more time to show the audience this gradually growing attraction/romance.
They also balance each other out both emotionally and in combat. Blake is a calculating and a "bigger picture" girl, whilst Yang is brash and a "here and now" type. Blake is a stealthy, more long range fighter, Yang is jumping straight in the middle of a fight with a short range fighting style. It's a Yin&Yang pairing.
There are so many diect parallels between Blake's last romantic partner and Yang (as well as Arkos & Renora), but it's also shown how even if there are similarities, those qualities - if utilised well - can be lovable. Passion does not have to consume everything in its way, it can build. Hot-headedness does not have to destroy, it can teach you how to slow down & grow. Everything Blake missed in Adam was there tenfold in Yang. She never pushed her, only showed that she's there & she's safe if Blake needed her.
It was never a question they would end up together. The only question was when.




















