Using Him

I used him
He really liked me,
I just wanted to get another guy off my mind,
So i said i liked him
and went out with him,
Why did i do this,
I let him walk away,
And now i like him,
I started talking to him again,
I think about all the good times,
Then I think about how i let him go,
Why did I Do that,
What possessed me to?
Now that i like him,
He is taken.
Why did I use him?
It was stupid,
I should of never done it.