The speaker is hurting because someone they love has gone silent. The person won't talk to them and has pushed back all the love offered, as if it were a gift being returned unopened. That image of "throwing back" suggests rejection that feels deliberate and a little harsh.
What stands out is the speaker's response. They don't lash out or plead. Instead, they say that even writing about this person "seems cruel." It's a surprising admission. Turning the pain into a poem might feel like exposing the other person, or like having the last word in a conversation that has been shut down. The speaker seems torn between needing to express the hurt and not wanting to wrong someone they still care about.
The poem is short and cuts off with a dash, which leaves a feeling of unfinished thought, almost as if the speaker stops themselves mid-sentence. The mood is quiet, tender, and sad, with a restraint that makes the hurt feel even more real.