Replace Me

What if I told you that I was okay
Can you believe a word I say,
When it comes to feelings,
I never tell the truth,

When it comes to sadness
I try to resort to being mean
When it comes to people
I would rather stay unseen.

When it comes to fights,
you can face me,
When it comes to boys,
replace me.

But when it comes to how many hearts you people can break,
I ask you, please,
don't erase me! :D