Seems like you're also the man in snare.
She didn't want to make it offical a like or don't-like
thing.
So that she could mantain at the upper hand of 'being chased'
A will be miserable, guessing if she likes him-recipocation
Hence A will do more and more to gain her attention and affection,
B will gain the attention she wants and feed on it.
Typical evil method.
Silly friend, he should burn himself and learn this lesson.