Metaphor, end rhyme, and repetition are all used.
Answer:
First option would make the most sense to me.
Answer: Authorial Intrusion. Or repetition.
Explanation: Repetition: The use of the word love is repeated in 3 lines within this poem. Another device would be metaphor because in this work love is being compared to being a game and being cruel.
Authorial Intrusion: Because the poem is written in first person, and the narrator is speaking directly to the reader.
Those are the two answers. Hope this helps :)
I think the correct answer is the third one, "I made the best brownies today!"
An unreliable narrator is a narrator whose credibility has been compromised. Since you can't tell if this narrator credibility has been compromised from a single sentence but need a whole text to develop such incredibility, I say this is unreliable because the narrator is giving its own opinion of something he/she has made, and you can't rely on he/she being imparcial.