I've never seen you this bad
I don't know how to make you better
All of this makes me sad
You've always been there since I've been around
We were very close and always played on the ground
I love you with all my heart
That's why I wrote you this letter
I can feel a strong emotion coming from this for the most part.
In my opinion though I really do think the fifth line could do with a little revising.
To me it doesn't fit with the flow, breaking the mood somewhat, also it seems like it was only placed there to rhyme with the line before.