Board Thread:Off Topic/@comment-27265101-20170131070502/@comment-3387274-20170308174336

and not long after that just about everyone on the team, including Monty, started saying that the characters themselves are at the age where they're still making their mind up, which kinda makes it hard to take any one off things as clear flags. It is very hard to tell in Yang's case, in my opinion, since that was basically the only time she showed much interest in anyone male, but by the same token dancing with Blake is the only time she showed any interest the other way (I don't count her hugging Blake as anything other than caring about her team mates in a general sense).

If anything, Blake seems more likely to be bi than Yang, since she spent the first two volumes consistantly blushing at Sun. Assuming the somewhat dissapointing "she's just straight" doesn't apply.