Song that goes, because IIIIII not the only one something like that?

Sounds like 'Smile in Your Sleep' by Silverstein. Here are the lyrics:

When I'm lying in your bed

Play the motions through my head

You know that I'm thinking, I'm thinking...

And I have reasons to believe that

I'm not the only one you spend this time with, but I'll stay...

[Chorus:]

You say, you're weak,

You won't let me down,

You won't let me down.

You lie through your teeth,

You smile in your sleep,

You smile in your sleep.

When we met

You said we were the same,

You know that we're different, we're different,

And all the times you promised me that

Everything would work out in the end, you were gravely mistaken

[Chorus]

You lie, you lie, you lie, you lie

You lie through your teeth

You won't let me down,

You lie, I deserve better than this

I dream of steel. Maroon and warm,

Your end (your end), your end (your end)

You gasp for air.

I'll see this through, I'll see through you,

Your pale (your pale), your pale (your pale),

Your pale blue eyes.

When you're lying in your bed,

Your eulogy's been read

You know that it's fitting, you lie.

[Chorus]

You smile, you smile, you smile, you smile

I deserve better than this