What Should I Do?

I asked what was wrong
She said it was nothing
I knew it was something,
So I asked again
She said just forget it

What can I do?

I heard the rumors
She told me her secret
She said that she stopped
I sais I believed her

Should I?

I asked her what happened,
The marks on her arm
"My neighbor's dog"
Was her excuse
Then their were more
I asked her again
Same excuse,
She said to just drop it
I didn't, I care

Of course she got mad
But I want to help,
She's my friend

What should I do?