Some people are poison

Some people are poison.
You think it's you,
But it's really them.
There's no need to pretend.

Some people are poison.
They get inside you,
Till you can't breathe.
And parting is such relief!

Some people are poison.
If they are really your friends,
You will know. They'll be there with you
For every ebb and flow.

Some people are poison.
Throw them up.
Spit them out.
When they are gone,
Scream and shout!