Why should I stay?

The first night

I usually go to bed after dance practice but today was different.you see my dad
got married yesterday. I really hate this prissy bitch Kate. To make matters worse she abuses me. No not mentally, but physically.
I get home from dance after parking my car in the street, as I step inside I see Kate, she was giving me her evil eye. "oh God, not again. I can't have her abuse me tonight." i think to myself as she steps closer
"Well well well, where were you Marissa?" Kate says
"I- I- I was just at dance. I'm sorry I'm late, there was traffic"
"Oh really?"
"Yes."
The next thing I remember I was
waking up on the floor, sprawled up in a ball. My leg had a huge gash on it, from what I can tell it looks like a knife Mark.
as I got up and walked to the bathroom to wash up and put gauze on my gash I thought to myself.
"wow.. this was worse than I thought,
should I tell my dad?
no. I can't he LOVES her... and he's happy, but I'm not.
no Marissa, this isn't right , just let him be happy, that's what matters.. "
When I got to my room after washing up and sat on my bed and texted my best friend in the whole world Aubrey:
"hey"
"hi Marissa!"
"Kates been at it again"
"AGAIN? wow she's a bitch ."
"she stabbed me I think"
"bitch slap her!"
"I can't.... it'll make thinks 10 times worse.."
"stay strong marissa! I love you 💜"
" love you too aubrey! night!💞"
Aubrey is amazing! she's so sweet wow, and to think someone actually likes me , for me !
Just as I was going to bed I heard a knock on my bedroom door.
"MARISSA OPEN UP RIGHT NOW"