Keappon's reply history at Help.com

sounds like she might be open to being something more

Maybe it would help to get some distance. If he can’t get instant gratification of his desire to be with you, then perhaps he will aim to put more effort into the relationship.

The language suggests a longing for the unseen, archaic lover of humanity, but your other comments make it seem like the poem is about someone real.

Is the poem about a person or something “greater”?

Liking a girl doesn’t make you gay, just as liking a guy doesn’t make you straight. You like whoever you like, regardless of what labels society tries to push on you.
What would you do if there was a guy on your team that you liked?

I like it, but I wasn’t sure how to interpret it (I guess that’s the mark of a good poem).

Does he purport to love you?

Talk to the boyfriend before telling her. Give him the ultiatum: tell her or I will. It will be better if she hears it from him.