I mean, we do assume that only boys fail at their crushes.
Let me list the actual possibilities, factoring in different kinds of people.
This could be a meme from somewhere else, looking at the title and making a small deduction.
They could be a guy, crushing on a girl, making a typo.
They could be a girl, crushing on a boy.
They could be a guy that's gay.
They could be a biological guy feeling like a girl ("woke" americans help me out here) crushing on a guy.
God, there are so many more possibilities. I think.