1. The beginning is great. It sets of a perfect mood for the idea you're trying to convey and the word choice is good-
2. Up until you repeat decide twice. When writing a poem, you want to keep it fresh. Repeating words causes a problem with the brain because it doesn't keep the sound flowing; it sort of stunts it.
3. When you Spelled "'Cause" as "Cuz," it's a distraction. Correct spelling is important unless you're intending to use the bad spelling as a pun. That's just my take.
All over it's a good idea and a sad poem, and with a little touching up it could do great!