You make me happy. You make me sad. You make me forget, that

You make me happy.
You make me sad.
You make me forget,
that i was ever mad.
You bring me up,
When i am down.
And you catch me right
before i hit the ground.
You're all i want
and you're all i need.
And its hard for me to say,
that you and i,
will probably never be.