"If you say you straight after this ISTG," one user wrote in the comments. The post features a number of similar comments, all wondering if Billie chose this moment, during PRIDE, to come out.
Ultimately, though, it's unclear whether Billie intended her comment to be interpreted that way. In spite of her enormous fame, the singer has always been tight-lipped about her love life.
It may seem unlikely that Billie would do something so carefully calculated, but fans haven't dismissed the idea entirely.