Bluestar's Life. Competition for NightClan

I was young, and I lost my mother.
To an attack prophesied by her brother.

Now I'm alone, my sister has fallen in love.
He is cruel and mean, but shows affection solely to her

She may not see it, but I do.
I know they pain he could cause her,
The despair

But she doesn't, oh, no she is oblivious.
Now she is carrying his kits as a new warrior.

Just for that, he is not an apprentice anymore.
Two moons pass, and Whitekit is born.
He is sweet, and I hold him dear

But one day I was careless, too careless

We found ShadowClan stealing prey
Hunting a rabbit on our territory

We chased them off, but not without a price
That day, I lost my sister to a monster... to be precise

And I will never forgive myself.
But, all I can do now, is move on,

Care for Whitekit, like my own.
Now I have fallen in love and broken the code
Not to mention having kits for me to own.

But, I can't keep them, no matter how much I want to...
So now, two are in RiverClan with their father,
And one is in StarClan, my sister caring for her.

I did it all, so I could save the clan from disaster,
Known as my sister's lover.

StarClan, why did my life have to be a mess?
I've lost a mother, lost a sister, lost one of my kits, and even my lover

StarClan, why?
The prophecy was about Firestar, not me...
Why did I suffer?