This song seems to be about the same subject in “Boomerang,” “Don’t Mess Me Around,” “Give Me,” and “Happy Anniversary” who, it is implied, cheated on her.
[Verse 1]
I should have known
When we first met
I should have known
I should have known
He’d have had no respect
I should have known
[Chorus]
I should have known
I should have looked through his phone
Checked his clothes
Been like Sherlock Holmes
I should have known
Oh, I should have known
[Verse 2]
Yeah, I should have known
When he bookmarked her page
I should have known
Oh, I should have known
He said it was me who was deranged
Well, I should have known
[Chorus]
Yes, I should have known
I should have looked through his phone
Checked his clothes
Been like Sherlock Holmes
I should have known
Oh, baby, I should have known
[Verse 3]
Yeah, I should have known
He said he was out with his mates
Well, I should have known
Yes, I should have known it
Yhat she’d be there on a plate
I should have known, hmm
[Chorus]
I should have known
I should have looked through his phone
I should have checked his clothes
And been like Sherlock Holmes
I should have known
Hmm, hmm I should have known
[Verse 4]
Now, I should have known
That he’d be blind by the blues
I should know
Yeah, I should have known
He’d think that he’d have nothing to lose
I should have noticed, oh yes
[Chorus]
I should have known
I should have looked through his phone
Checked his clothes
Been like Sherlock Holmes
I should have known
Oh, yeah, I should have known
Sherlock was written by Clare Maguire.