Take it easy, love nothing

Now I do as I please and lie through my teeth
Someone might get hurt, but it won't be me
I should probably feel cheap but I just feel free...
and a little bit empty
No, it isn't so hard to get close to me
There will be no arguments
We will always agree
And I'll try and be kind when I ask you to leave
We'll both take it easy
But if you stay too long inside my memory,
I will trap you in a song tied to a melody
and I will keep you there so you can't bother me.