Single Word

There's this single word
That I never say
Afraid if I do
It'll get in the way

There's this single word
I always avoid
Afraid if I say it
You'll just get annoyed

There's this single word
You've never said
I say that I'm paranoid
It's all in my head

There's this single word
Do you know the one?
Afraid if it slips out
You're just going to run

There's this single word
That I never speak
I know I should say it
I know that I'm weak

There's this single word
That I have to say
Love is that word
And I'm saying it today