The first stanza is so powerful here - an apology, almost, in regards to a love that could never be fully returned perhaps? Loving you, but alone in that love.
"Nothing cures the pain of knowing everything I never gave you" - heartbreaking and highly affective in reinforcing the first stanza - the love could simply not be given back by you because of the house that dripped blood - great metaphor, by the way.
And then the idea that you allowed it to get that far, but were unable to give what was required - again, accepting the blame "I let you close enough....."
Then the last, killer stanza - how lonely the person in question must have been in pursuit of something you never even had to give.
Brilliant
All the best, Ben

Little Thistle you write so so good, I always find it hard to comment on your writing because it ALWAYS leaves me pndering my own emotions......sometimes too much for my liking lol

Nothing short of awesome as always x

You must have been so lonely inside my heart,
with a silence so loud,
like living in a house that dripped blood
which flooded your soul.

^ I love this stanza so much, because it brings an impact to the reader right off the bat. Not a lot of people understand that silence can be louder than anyone speaking. A broken heart that holds loneliness affects so many people and that is what you show here.

Nothing cures the pain of knowing
everything I never gave you,
and now my chances are buried
inside boxes covered in dust.

^ This stanza makes the reader think, it is simple yet complex in its wording. I loved the first two lines most here because it is truth. Everything you do or say can be unheard, and what you wanted to say is buried within your soul. It seems like this person you cared for deeply, is now passed. Your chances to portray who you are to anyone is now lost.

I let you close enough to see
the prize of my heart,
but like a child's shattered spirit,
you became broken -
knowing it would forever be unreleased.

^ Giving someone your heart is a prize that not a lot of people can be given, especially if you have been hurt in the past. I loved how you used the word broken here, it works well to describe how you are truly feeling and how much it was shattered. Though you gave this person person your heart it was too late to take it.

You must have been so lonely inside my heart,
knowing you could never gain
what was never there.

^ what a great ending here! You go back to the beginning stanza and wrap up the poem nicely, overall. This poem was deep and the meaning was sad. You did a great job letting all of your feelings out. 5/5