H A L F A N D B R O K E N

**Okay so Half is italicized like this "half". And Broken is bolded like this "broken". We're good?**

I'm half alive yet half breathing,
and I'm broken yet still beating.
I see only what deems to be worthy,
and I cry for what seems to harm me.
I like only what suits me,
and I hate only what kills me.

Suddenly I'm half dead,
and suddenly I'm broken alive.
You'll only see me part way,
and you'll need me the same so stay.
You'll wonder what tore me,
and you'll wonder what shattered me.
Like the same puzzle piece,
With an almost taunting tease.

I'll be half there,
and broken over here.
And yet alas, I am half,
where half is half existence.
And yet alas, I am broken,
where the shattered souls lie for ever essence.

Can you guess who I am?
Who am I?